radar research papers-free download




radar research papers 2013



Radar Signal Recognition Algorithm Based on Fractal Theory and Neural Network
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Nowadays, the traditional recognition method could not match the development of radar signals. In this paper, based on fractal theory and Neural Network, a new radar signal recognition algorithm is presented. The relevant point is extracted as the input of neutral 

159 ARCHITECTURE OVERVIEW AND SYSTEM PERFORMANCE OF THE AIRBORNE PHASED ARRAY RADAR (APAR) FOR ATMOSPHERIC RESEARCH
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The National Center for Atmospheric Research (NCAR) is investigating potential configurations for the next generation of airborne radar which is capable of retrieving dynamic and microphysical characteristics of clouds and precipitation, Loew et al.(2007), 

Design considerations for developing airborne dual-polarization dual-Doppler radar
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An airborne radar has only a limited amount of time to collect measurements over a specified sample volume, the e-scan will significantly enhance temporal and spatial resolutions of airborne radar observations (Bluestein et al. 2003). At present, airborne 

field experiment of the ENI/NOFO HF radar project
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The ship track of R/Vduring the cod stock assessment cruise in March 2013. The cruise started in The red dots indicate stations where CTD profiles where taken. The positions of the three HF radars and the ADCP rig are 

and semidiurnal tides over Ascension Island (8 S, 14 W) and their interaction with the stratospheric QBO: studies with meteor radar, eCMAM and WACCM by
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We would like to thank the referees for their constructive comments and we were very pleased to see that they find the paper suitable for publication in ACP. We have made many changes to the paper based on their recommendations. The revised draft is attached. We 

Detection frequency can vary with orientation of roots in Pinus thunbergii forests using ground penetrating radar
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Abstract Ground penetrating radar (GPR) can detect tree roots under specific conditions but detection frequency is affected by several factors such as water contents of roots and soils, root diameter and root positionsIn coastal 

The Next Generation Airborne Polarimetric Doppler Radar
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NCAR's Electra Doppler radar (ELDORA) with a dual-beam slotted waveguide array using dual-transmitter, dual-beam, rapid scan and step-chirped waveform significantly improved the spatial scale to 300m . However, ELDORA X-band radar's 

RADAR ANALYSIS OF BIRD MIGRATION STOPOVER SITES IN THE SOUTHEASTERN US
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Executive Summary During migration birds require stopover habitat that provides energy resources and safety from predators. Because stopover use of land birds during migration can vary dramatically from day to day and locally in space, comprehensive and long-term 

Thickness of Pyroclastic Deposits for Aestuum Region: Initial Results from Kaguya LunarRadar Sounder (LRS)
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Lunar Radar Sounder, with a center frequency of 5 MHz, can be used to study subsurface structure 

and semidiurnal tides over Ascension Island (8° S, 14° W) and their interaction with the stratospheric QBO: studies with meteor radar, eCMAM and WACCM
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ABSTRACT Horizontal winds in the mesosphere have been measured over Ascension Island (8? S, 14? W) in the tropical mid-Atlantic region throughout the years 2002–2011. The observations were made by a VHF meteor radar. The results reveal the presence of 

SCANNED DUAL-POLARIZATION LINE-REPLACEABLE UNIT (LRU) FOR AIRBORNE PHASED ARRAY RADAR FOR ATMOSPHERIC RESEARCH
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A modular dual-polarized two-dimensional electronically scanned C-band phased array radar is currently under consideration by the National Center for Atmospheric Research (NCAR) for the next generation of airborne radar for meteorological research (Wen Chau L., et al. 

Radar and Geomorphic Evidence of the Occurrence of Massive Ground Ice in the Martian Northern Plains.
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Conclusion: Considered together, the low permittivities that characterize the Martian northern plains and their close geographic agreement with the distribution of DLE craters [13](Figure 3), and other cold-climate landforms [1, 3, 8]–all within the region interior to 

Eureka, 80° N, SKiYMET meteor radar temperatures compared with Aura MLS values
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Abstract. The meteor trail echo decay rates are analysed onsite to provide daily temperatures near 90km. In order to get temperatures from trail decay times, either knowledge of the pressure or the background temperature height gradient near 90km is 

Warning signal brightness variation: Sexual selection may work under the radar of natural selection in populations of a polytypic poison frog
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ABSTRACT Though theory predicts consistency of warning signals in aposematic species to facilitate predator learning, variation in these signals often occurs in nature. The 

Correction of radar QPE errors for non-uniform VPRs in mesoscale convective systems using TRMM observations
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As we know, water is a source of many hazards especially in the warm season. It is essential to monitor and predict water related hazards, such as flash floods, debris flows, and to determine current and future availability of water resources. The radar network provides 

Radar remote sensing for surveying and monitoring of earthquakes and mass movements in Southern Kyrgyzstan
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Kyrgyzstan is landlocked mountainous nation of around five million people, which borders China, Kazakhstan, Tajikistan and Uzbekistan. The total area of high mountainous terrain, alpine meadows and pastures exceeds 70% of the Republic's territory, whereas the 

Radar research on the impact of offshore wind farms on birds: preparing to go offshore
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Wind farms have three possible effects on birds. One of them is the barrier effect.described that birds change their direction of flight in the vicinity of a wind farm. It is unknown if this will also be the case for the offshore wind farms in the Belgian part of the 

Advantages to Geoscience and Disaster Response from the QuakeSim Implementation of Interferometric Radar Maps in a GIS Database System.
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ABSTRACT High-resolution maps of earth surface deformation, which are becoming available through the NASA UAVSAR program, are available in public archives for scientific interpretation, but primarily as bulky downloads. Selection through browsers and initial 

Radar Imaging the Interiors of Small Bodies: Initial Migration Studies
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Summary The origin and evolution of small bodies, particularly their collisional histories, may be elucidated by wave field imaging of their interiors. Several mission and instrument concepts have been developed and the CONSERT radio transmission experiment 

Ultrawideband Radar Time Domain Simulation for the Analysis of Coherent Signal Processing Techniques
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ABSTRACT In this paper a method for performing UWB radar time domain simulations is explained and simulation results are demonstrated. The given results are compared to measurements and the simulation errors are discussed. This constitutes a first step 

Signature of large aspect ratio roll vortices in synthetic aperture radar images of tropical cyclones
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WSC and DIV patterns suggest that there are embedded, approximately wind-aligned, ?~ O (10 km) structures in the hurricane boundary layer that induce both:(1) periodic enhancements and reductions of the approximately azimuthal component of the surface 

PREDICTION OF HIGH IMPACT WEATHER AT RADAR RESOLUTION
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? USE GROUND OR AIRBORNE RADAR FOR THE ASSIMILATION OF RADAR BASED RAINFALL ESTIMATES, INTERPOLATED TO THE HORIZONTAL RESOLUTION OF THE MODEL (AROUND 1KM FOR THE HORIZONTAL) AND AT EACH TIME STEP OF THE 

FMCW Radar for Small Displacement Detection of Vital Signal Using Projection Matrix Method
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Small displacement detection has been studied for extracting heart rate signal from the respiratory variation component of the human body with the FMCW radar method. And a new signal processing method of vital signal has been proposed for suppression of 

due to the combined action of storm surge induced washover events and progradation: Insights from ground-penetrating radar surveys and sedimentological
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Barrier islands and spits are geological young, highly dynamic and represent a complex coastal system that includes a number of different but closely related sedimentary depositional environments. In this study ground-penetrating radar data of different 

Real-Time Vehicle-Mounted Multistatic Ground Penetrating Radar Imaging System for Buried Object Detection
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1Abstract A multistatic ground penetrating radar system is described, capable of real-time imaging and object detection. The radar consists of 16 transmitter and receiver pairs mounted across the front of a vehicle. The transmitters operate sequentially with all 

GLOBAL DISTRIBUTION OF RADAR-BRIGHT HALOS ON THE MOON DETECTED BY LRO MINI
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Methods: Mini-RF is a dual-band, synthetic aperture radar (SAR) onboard LRO operating in the S-band (2.38 GHz, 12.6 cm wavelength) or X-band (7.14 GHz, 4.2 cm wavelength)[12]. In this work, we use S-band data processed into global mosaics [13], presented here at 64 

8.3 SIMULATED NWS TORNADO WARNING DECISIONS USING RAPID-SCAN RADAR DATA
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the impact of radar update time on tornado warning decisions was examined. During the experiment forecasters worked as pairs on the same tropical supercell event in simulated real time with two different volumetric updates: 43 s and 4.5 

General MIMO Framework for Multipath Exploitation in Through-the-Wall Radar Imaging
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Detection and localization of stationary and moving targets within a building or an enclosed structure are highly desirable in through-the-wall radar imaging (TWRI) and urban sensing applications. These objectives are primarily challenged by two factors. First, multipath 

Response of ice cover on shallow lakes of the North Slope of Alaska to contemporary climate conditions (1950–2011): radar remote-sensing and numerical
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Abstract. Air temperature and winter precipitation changes over the last five decades have impacted the timing, duration, and thickness of the ice cover on Arctic lakes as shown by recent studies. In the case of shallow tundra lakes, many of which are less than 3m deep, 

Radar Imagery of the Chryse–Xanthe Region, Mars
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Earth-based radar imagery of Mars has been used to map regions of enhanced small-scale (sub-meter) surface roughness based on the brightness of the depolarized echo component. Although most bright depolarization features are associated with lava flows in the major 

Radar Waveform Inversion Using Range-Frequency Sparsity
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Page 1. Radar Waveform Inversion Using Range-Frequency Sparsity Ryan Volz and Sigrid Close Page 9. 9 Range-Doppler Imaging Radar Model • Imaging equation: is equivalent to 

High resolution VHF radar measurements of tropopause structure and variability at Davis, Antarctica (69° S, 78° E)
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Abstract. Two years of Very High Frequency (VHF) radar echo power observations are used to examine the structure and variability of the tropopause at Davis, Antarctica. Co-located radiosonde and ozonesonde launches provide data with which to calculate the lapse-rate 

ABSOLUTE POWER CALIBRATION OF THE PENN STATE RADAR SYSTEM FOR METEOR STUDIES
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ABSTRACT Recently, a technique was developed to derive meteoroid masses from meteor showers by using well-calibrated meteor radar facilities . This technique firstly computes the maximum electron line density from the backscatter signal and then derives the 

Ice volume estimates from ground-penetrating radar surveys, western Nordenskild Land glaciers, Svalbard
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As part of ongoing work within the SvalGlac project aimed to obtain a reliable estimate of the total ice volume of Svalbard glaciers and their potential contribution to sea level rise, in this contribution we present volume calculations, with detailed error estimates, for ten glaciers 

Observational aspects including weather radar for tropical cyclone monitoring
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ABSTRACT. In the context of the Forecast Demonstration Project (FDP) of the India Meteorological Department (IMD), a review is made of the various observational facilities and techniques which can be deployed, for the detection tracking and understanding of 

Passive over-the-horizon radar with WWV and the first station of the Long Wavelength Array
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We present a new passive, over-the-horizon (OTH) radar system consisting of the transmitters for the HF radio station WWV and the dipole-antenna array that comprises the first station of the Long Wavelength Array (LWA), or LWA1. We demonstrate that these 

Optimized Sinus Wave generation with Compressed Sensing for Radar Applications
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Estimate signal from the residueDisable the estimated indices 5:supp (H1 (g))? Find index of greatest valueAdd the new index to the setSet the 

Radar-detected englacial stratigraphy in the Pensacola Mountains, Antarctica: implications for recent changes in ice flow and accumulation
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Abstract. We used measurements of radar-detected stratigraphy, surface ice-flow velocities and accumulation rates to investigate relationships between local valley-glacier and regional ice-sheet dynamics in and around the Schmidt Hills, Pensacola Mountains, 

Terrain subsidence detected by satellite radar scanning of the Copenhagen area, Denmark, and its relation to the tectonic framework
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In the European Union (EU) project Terrafirma, which is supported by the European Space Agency to stimulate the Global Monitoring Environment System, we are using the latest technology to measure terrain motion on the basis of satellite radar data. The technique 

Plasma Turbulence of Non-Specular Trail Plasmas as Measured by a High Power Large Aperture Radar
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 Plasma Turbulence of Non-Specular Trail Plasmas as Measured by a High Power Large Aperture

Ground Penetrating Radar Validation of Seasonal Snow Depth Variations in Forested and Non-Forested Transects
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ABSTRACT The purpose of this study was to review how Ground Penetrating Radar (GPR) operates and apply it to a snowpack to distinguish how snow depth changes with respect to changes in vegetation. Three transects were taken in areas with differing vegetation 

Application of Ground Penetrating Radar to Identify Shallow Cavities in a Coastal Dyke
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ABSTRACT Hidden cavities in a coastal dyke are key indications of possible soil subsidence or seepage piping within the soil of the dyke. The main purpose of this research was to study the detectability and location of cavities in a coastal dyke using the ground penetrating 

Use of GPS and X-Band Radar to track tidal currents around the shore parallel breakwaters at Sea Palling, Norfolk, UK.
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Sea Palling on the East coast of the UK has a series of 9 rock breakwaters with various dimensions parallel to the coastline. To the north there are four 200 m long structures with crest heights at 1.3 m above mean high water springs (MHWS). The next four breakwaters 

Interactive comment on Temporal stability of soil moisture patterns measured by proximal ground-penetrating radar by J. Minet et al.
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This study investigates temporal stability (TS) of soil moisture patterns at the field scale using GPR data and two temporal stability methods (relative difference analysis and spatial intersection of the areas showing the field-average). TS areas could be identified that 

Exact spectrum of non-linear chirp scaling and its application in geosynchronous synthetic aperture radar imaging
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ABSTRACT Non-linear chirp scaling (NLCS) is a feasible method to deal with time-variant frequency modulation (FM) rate problem in synthetic aperture radar (SAR) imaging. However, approximations in derivation of NLCS spectrum lead to performance decline in 

Quantifying Snow and Vegetation Interactions in the High Arctic Based on Ground PenetratingRadar (GPR)
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The quantification of the relationship between accumulation of snow and vegetation is crucial for understanding the influence of vegetation dynamics. We here present an analysis of the thickness of the snow and hydrological availability in relation to the seven main 

Statistical characteristics of PMWE observations by the EISCAT VHF radar
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ABSTRACT. In the present paper~ 32. 5h of EISCAT VHF PMWE observations were analyzed with focus on spectral properties like spectral width, doppler shift and spectral shape. Examples from two days of observations with weak and strong polar mesosphere winter 

Improving soil moisture profile prediction from ground-penetrating radar data: a maximum likelihood ensemble filter approach
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Abstract The vertical profile of root zone soil moisture plays a key role in many hydrometeorological and agricultural applications. We propose a closed-loop data assimilation procedure based on the maximum likelihood ensemble filter algorithm to 

Wind-shear Detection Performance Study for Multifunction Phased Array Radar (MPAR) Risk Reduction
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EXECUTIVE SUMMARY Low-altitude wind-shear phenomena, especially microbursts, are a critical hazard to aircraft approaching and departing airports. They also pose a challenge to radar-based detection systems due to their shallow depth, proximity to ground clutter, wide 

Marine X-band radar derived wave field quality on an ebb tidal delta
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The marine radars at ships or positioned along the shoreline monitoring the sea surface for navigational purposes, can be used to observe waves. In their navigational images noise arises by the interaction of the electromagnetic signal with the small wind ripples at the 

On the Benefits of a High-Resolution Analysis for Convective Data Assimilation of RadarObservations using a Local Ensemble Kalman Filter
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 On the Benefits of a High-Resolution Analysis for Convective Data Assimilation of Radar Observations using a Local Ensemble Kalman Filter Heiner Lange and George C. Craig Hans-Ertel-Centre for Weather Research, Data 

RADAR Argon Detector at Ash River-Letter of Intent
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ABSTRACT In the RADAR project described in this Letter of Intent, we propose to deploy a 6kton liquid argon TPC at the NO?A Far detector building in Ash River, Minnesota, and expose it to the NuMI beam during NO?A running. It will significantly add to the physics 

Interactive comment on Hydrological appraisal of operational weather radar rainfall estimates in the context of different modelling structures by D. Zhu et al.
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Discussion. Please comment on the use of more advanced radar-gauge merging techniques such as kriging with external driftto improve the rainfall estimation and hydrological modelling. This technique takes into account quantitative measurements from raingauges 

Application of Transformation Electromagnetics to Cloak Design and Reduction of RadarCross Section
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Abstract In this paper we present an alternative approach to addressing the problem of designing cloaks for radar targets, which have been dealt with in the past by using the transformation optics (TO) algorithm. The present design utilizes realistic materials, which 

Marine radar observations of iceberg distribution in the summer Southern Ocean
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Abstract. During the 19th Chinese National Antarctic Research Expedition from December 2002 to January 2003, 1085 icebergs were observed along the cruise track within the range 58–688 S in the Southern Ocean using the marine radar on the R/V 

Ocean Radar for Monitoring of Coastal Zones–new aspects after getting a world wide frequency allocation for these instruments
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The Ocean Radar system is based on over-the-horizon radar technology and provides high antennas (2–3 m high monopoles) are set up as an array close to the coast-line or at a cliff 

Assessment of Bird Response to the NRCS Migratory Bird Habitat Initiative using Weather Surveillance Radar: Final Report
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The northern Gulf Coast is home to an extensive series of wetlands stretched along 75,000 km of shoreline that serves as habitat for a wide variety of resident and migratory waterbirds . These wetlands have been 

Quality control of weather radar data using polarimetric variables
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Weather radar data are routinely employed for precipitation estimation , hail detection , nowcasting, numerical weather prediction [4], and severe weather diagnosis [5]. Such automated applications operating on weather radar data are adversely affected by non- 

continuous compaction of aquifer system in Tehran, Iran, as evidenced by C-band, L-band and X-band radar measurements
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ABSTRACT In this study we used two datasets of TerraSAR-X SAR images including 15 VV polarized images between 27 January 2012 and 25 September 2012 and 9 HH polarized images between and to evaluate the performance of X- 

RIME: Radar for Icy Moon Exploration
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Abstract The Radar for Icy Moon Exploration (RIME) has been selected by European Space Agency (ESA) as one of the instruments on board of the JUpiter ICy moons Explorer (JUICE). RIME is a nadir looking radar sounder designed to study the subsurface of the 

Approximate Bayesian Inference for Reconstructing Velocities of Migrating Birds from Weather Radar
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Abstract Archived data from the WSR-88D network of weather radars in the US hold detailed information about the continent-scale migratory movements of birds over the last 20 years. However, significant technical challenges must be overcome to understand this 

Detection of hail through the three body scattering signatures and its effects on radaralgorithms observed in Romania
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ABSTRACT The Romanian National Meteorological Administration (NMA) radar network consists of five S-band and four C-band radars. Observation of convection in Romania through the Doppler radar network offered a new perspective in understanding the 

Notes and correspondence: Rayleigh scattering by hexagonal ice crystals and the interpretation of dual-polarisation radar measurements
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Dual-polarisation radar measurements provide valuable information about the shapes and orientations of atmospheric ice particles. For quantitative interpretation of these data in the Rayleigh regime, common practice is to approximate the true ice crystal shape with that of 

Sensitivity Analysis and Critical Factor Screening at Precipitation Estimation using DopplerRadar
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ABSTRACT Data mining method has been used to obtain more precise precipitation than radar data. Although there are many virtues such as high resolution, real time estimation in using radar data, special and temporal discrepancies between radar and actual rain fall are the 

Titan Rotation: Constraints from Cassini Radar
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Introduction: We report on progress being made in using the Cassini mission radar data to better constrain the rotational dynamics of Titan. It has long been known that Titan is a synchronous rotator, with small obliquity, and moves in an orbit with small eccentricity, and 

Advances in Antenna Array Processing for Radar
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Array processing is classically not considered as an antenna topic but more as a signal processing topic. So why did we edit a special issue on this topic for the International Journal on Antennas and Propagation? Today, with modern array antennas, the 

Determination of the Permittivity of the Lunar Surface Based on the Radar Echo Intensity Observed by the Kaguya
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The obtained Hurst exponent H is less than 0.5 in the maria, and about 0.9 in the highlands. The parameter s is about 1 in the maria, and about 0.3 in the highlands. The global distribution of H is similar with that reported by Lunar Reconnaissance Orbiter (LRO) laser 

Wideband Radar Spread Targets Detection in Compound Gaussian Clutter
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ABSTRACT The aim of this study is to analyze the influence of neglecting compound Gaussian clutter texture on wideband radar targets detection. The texture of compound-Gaussian clutter is researched, the Probability Density Function (PDF) expression of G0 distributed 

Integrated modeling of near-field ground-penetrating radar and electromagnetic induction data for digital soil mapping
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Abstract We present an integrated modeling procedure for near-field ground-penetrating radar (GPR) and electromagnetic induction (EMI) for the non-invasive determination of the constitutive properties of planar layered media in a high-resolution digital soil mapping 

Synthetic Aperture Radar Doppler Anomaly Detected During the 2010 Merapi Eruption.
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Conclusions: Sub-aperture pixel offsets technique allowed us to highlight an anomaly on the Doppler parameters estimation of a Radarsat-2 SLC data acquired on the 30 of October 2010 (UTC) over Merapi volcano. Sub-aperture pixel offsets reaches 11.6 meters in the 

Ground-penetrating radar studies along the coast of Estonia
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Beach ridges, frequent components of coastal landforms, have developed on prograded

SIGNAL TO NOISE RATIO IMPROVEMENT OF MST RADAR SIGNALS USING DB9 WAVELETS
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Signal to Noise Ratio (SNR) computation is an important parameter in signal processing. This paper is discusses improvementof SNR using wavelets for MST Radar atmospheric signals. In this paperwavelet denoising is used to improve SNR. Denoising is performed 

126 IMPROVED VELOCITY VOLUME PROCESSING (VVP) WITH PROBABILISTIC PROPERTY OF VELOCITY MEASUREMENTS FOR A SCANNING RADAR/
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Weather radars have a big advantage in measuring precipitation due to their wide coverage, compared with other equipments such as rain gauges or disdrometers. Nowaday, many weather radars have been deployed to detect precipitation and forecast weather 

Multiagent meta-level control for radar coordination
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It is crucial for embedded systems to adapt to the dynamics of open environments. This adaptation process becomes especially challenging in the context of multiagent systems. In this paper, we argue that multiagent meta-level control is an effective way to determine 

Design of Marine Radar Signal Generator
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ABSTRACT. Radar signal generator in the high-level radar simulator equipped with true radar dsiplay can serve training and eduaction better. For this purpose, this paper analyzes real radar system, summarizes the working principle of radar signal generator, and brings forward a 

Mesosphere summer echoes observed with the SuperDARN Hokkaido HF radar at Rikubetsu, Japan (43.5? N)
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Using the SuperDARN Hokkaido HF radar located at Rikubetsu in Hokkaido, Japan (43.5? N), we present first oblique-incidence observations of midlatitude mesosphere summer echoes (MSE) at the HF band (HF-MSE). Three HF-MSE events in June 2009 are case- 

Investigating rainfall estimation from radar measurements using neural networks
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ABSTRACT. Rainfall observed on the ground is dependent on the four dimensional structure of precipitation aloft. Scanning radars can observe the four dimensional structure of precipitation. Neural network is a nonparametric method to represent the nonlinear 

Parameter Selection Procedure of Parabolic Reflector Antenna for the Optimum Synthetic Aperture Radar Performances
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ABSTRACT A procedure for antenna parameter selections is proposed that considers the relationships between synthetic aperture radar performance and the antenna parameters of a parabola-type reflector antenna with a central flat dish. The effects of a central dish 

Concepts and Components for Pulsed Angle Modulated Ultra Wideband Communication andRadar Systems
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Ultra Wideband (UWB) systems have been utilized and commercialized since the beginning of the 1970s and have been successfully used in ground-, wall-and foliage-penetration, collision warning and avoidance, fluid level detection, intruder detection and vehicle radar 

VHF meteor radar at King Sejong Station, Antarctica
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Abstract Since 2002, we have been observing the mesosphere and lower thermosphere (MLT) region over King Sejong Station (KSS; 62.22 S, 58.78 W), Antarctica, using various instruments such as the Spectral Airglow Temperature Imager (SATI), All Sky Camera ( 

Southeast Greenland high accumulation rates derived from firn cores and ground-penetratingradar
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ABSTRACT. Despite containing only 14% of the Greenland ice sheet by area, the southeastern sector has the highest accumulation rates, and hence receives $30% of the total snow accumulation. We present accumulation rates obtained during our 2010 Arctic 

Ice-edge detection from Japanese C-band radar and high-frequency radar coastal stations
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ABSTRACT. A C-band sea-ice radar (SIR) network system was operated to monitor the sea- ice conditions off the Okhotsk Sea coast of northern Hokkaido, Japan, from 1969 to 2004. The system was based on three radar stations, which were capable of continuously 

FPGA Based Multiple Preset Chirp Pulse Generator for Synthetic Aperture Radar Onboard Unmanned Aerial Vehicle System
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ABSTRACT Synthetic Aperture Radar (SAR) is one of active microwave radar sensor that could work all weather and day/night time. This system can transmit and receive the pulse to and from observe objects on ground surface, then its detailed figure or water vein location, 

Preliminary report Assimilation of HF radar total current vectors in an idealized version of ROMS-4DVAR
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Summary This report summarizes the results of task 1, activity 1 in the ENI/NOFO project on mobile HF radar systems. The work involves experiments with synthetic HF radar and hydrographic observations using ROMS-4DVAR in an idealized model setup. Tests are 

Wireless Remote Sensing Based on RADAR Cross Section Variability Measurement of Passive Electromagnetic Sensors,'invited presentation to the Convened
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ABSTRACT The wireless measurement of various physical quantities from the analysis of the RADAR Cross Sections variability of passive electromagnetic sensors is presented. A millimeter-wave Frequency-Modulated Continuous-Wave RADAR is used for both remote 

Assimilation of HF radar total current vectors in an idealised version of ROMS-4DVAR
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Regional Ocean Modeling System (ROMS), which is run operationally by the Norwegian Meteorological Institute. NorKyst800 covers the coast of mainland Norway and has a 

Reconstruction of Reference Signal for DVB-S Based Passive Radar Systems
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ABSTRACT Direct broadcasting satellites (DBS) are good opportunity illuminator for passive radar system. This paper presents a method for reception, decoding and reconstruction of DVB-S transmitting signal for the purpose of using it in passive radar systems as a 

Applications of ground-penetrating radar to investigate the Quaternary evolution of the south part of the Paraiba do Sul river delta (Rio de Janeiro, Brazil)
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EM Analysis of Metamaterial Based Radar Absorbing Structure (RAS) for Millimeter Wave Applications
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ABSTRACT The EM performance analysis of a multilayered metamaterial based radar absorbing structure (RAS) has been presented in this paper based on transmission line transfer matrix (TLTM) method for millimeter wave applications. The proposed 

Comparative Study on the Application of High-Density Electrical Method and Ground PenetrationRadar in Fault Surveying
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Page 1. Comparative Study on the Application of High-Density Electrical Method and Ground Penetration Radar in Fault Surveying Keywords: High-density electrical method, ground penetration radar, fault, apparent resistivityAbstract. 

MEMS based Top-Loaded Monopole Antenna Operating at 77 GHz for Automotive RadarSystems
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ABSTRACT Over a million fatalities happen in road accidents every year around the world, most of them being mainly due to human error. Besides several existing technologies used to reduce the impact of accidents (airbags, ABS, etc.), a new class of safety systems called 

Scientific and Integrated Reserach by In-situ Campaign Observations Synchronizing Polarimetric Radar with Video-Sonde
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Recently, disaster due to localized heavy rainfall is noticeable under climate change and urbanization. Although prediction accuracy of heavy rainfall in large spatial scale is getting higher and higher, it is still difficult for localized heavy rainfall in smaller spatial scale to be 

Inverting Saturated Hydraulic Conductivity from Surface Ground-Penetrating Radar Monitoring of Infiltration
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Hydraulic properties of soils, described by the soil water retention and hydraulic conductivity functions, strongly influence water flow in the vadose zone, as well as the partitioning of precipitation between infiltration into the soil and runoff along the ground surface. Their 

Study on Jamming to Sidelobe Cancellation of Phased-Array Radar
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ABSTRACT. Antenna sidelobe cancellation is effective method to repress radar sidelobe jamming. This paper analysed the function and characteristics completely based on the principle of sidelobe cancellation, and look for jamming method more effective according to the 

CLUTTER REMOVAL TECHNIQUE USING VIRTUAL REFERENCE TAGS FOR INTRUDER LOCALIZATION ULTRA WIDE BAND RADAR NETWORK
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ABSTRACT This paper presents an extension in our previous research on Ultra Wide Band (UWB) radar using Virtual reference tags (VRTs). VRTs are virtual tags that are mapped over a particular surveillance area. Each tag has its own stored information which is used by 

Radar theoretical study: minimum detection range and maximum signal to noise ratio (SNR) equation by using MATLAB simulation program
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ABSTRACT This paper deals with the minimum detection range versus maximum signal to noise ratio (SNR) for several choices parameters like (peak power percent, radar cross section (RCS), antenna gain, coherently pulses, and duty cycle) by using MATALAB 

Receiving Angle Extraction for Bistatic Radar Target Recognition
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ABSTRACT. When the target of interest is determined, the transmitter and receiver positions of bistatic radar are of great importance at the aspect of radar target classification. The radar cross section (RCS) of a target varies with these positions, and the target classification 

On precipitation measurements collected by a weather radar and a rain gauge network
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ABSTRACT. Many phenomena (such as attenuation and range degradation) can influence the accuracy of rainfall radar estimates. They introduce errors that increase as the distance from radar increases, thereby decreasing the reliability of radar estimates for applications that 

Angle Estimation in Bistatic MIMO Radar System based on Unitary ESPRIT
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ABSTRACT Angle estimation for a bistatic MIMO radar system based on Unitary Esprit techniques is proposed in this study. The algorithm exploits the dual invariance in distinct directions and centrosymmetry of the bistatic MIMO radar system to provide real valued 

Radar ECCM Performance Assessment Model
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ABSTRACT.The performance of radar anti-jamming (ECCM) to become an important parameter in modern radar, how objective and comprehensive assessment of the performance of radar equipment development and use are of concern, this paper analyzes the radar-jamming 

EVALUATION OF PAVEMENT LAYERS THICKNESS FOR AL-KUT-BAGHDAD RURAL HIGHWAY USING GROUND PENETRATING RADAR
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The Ground Penetrating Radar (GPR) was used in measuring the thickness of the pavement layers at Al Kut-Baghdad rural highway, 800 MHz antenna was used in scanning the selected highway section. According to the processed GPR data, the selected pavement 

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mimo radar

radar-micro-doppler-signatures

phased-array radar

inverse-synthetic-aperture radar

optical-and radar-images

radar-doppler-spectra

radar-based-elevation-models

radar-based-breast-cancer-detection-using-a-hemispherical antenna-array experimental-results Detection and parameters interception of a radar pulse signal based on interrupt driven algorithm

FREE DOWNLOAD This paper presents the development of a new algorithm for radar pulse signal acquisition and parameters interception. The parameters are measured based on digitizing intermediate frequency input stream and signal storing only on signal presence. In this Gait characterization via pulse-Doppler radar

FREE DOWNLOAD ABSTRACT Falls are a major cause of injury in the elderly with almost 1/3 rd of people aged 65 and more falling each year . This work aims to use gait measurements from everyday living environments to estimate risk of falling and enable improved interventions. For this Compressive sensing in through-the-wall radar imaging

FREE DOWNLOAD ABSTRACT High resolution through-the-wall radar imaging (TTWRI) demands wideband signals and large array apertures. Thus a vast amount of measurements is needed for a detailed reconstruction of the scene of interest. For practical TTWRI systems it is A rescue radar system for the detection of victims trapped under rubble based on the independent component analysis algorithm

FREE DOWNLOAD ABSTRACT This work presents a light-weight microwave system for the search and rescue of victims trapped under the rubble of collapsed building during an earthquake or other disasters. The proposed system based on a continuous wave X-band radar is able to

request paper-Adaptive Design of OFDM Radar Signal With Improved Wideband Ambiguity Function



Adaptive design of OFDM radar signal with improved wideband ambiguity function
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Abstract We propose an adaptive technique to design the spectrum of an orthogonal frequency division multiplexing (OFDM) waveform to improve the radar's wideband ambiguity function (WAF). The adaptive OFDM signal yields a better auto-correlation

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