satellite communication 2021
GOCO06s a satellite only global gravity field model.
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GOCO06s is the latest satelliteonly global gravity field model computed by the GOCO (Gravity Observation Combination) project. It is based on over a billion observations acquired over 15 years from 19 satellites with different complementary observation
Absolute Baltic Sea Level Trends in the Satellite Altimetry Era: A Revisit
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The absolute sea level trend from 1995 to in the Baltic Sea is analyzed by means of a regional monthly gridded dataset based on a dedicated processing of satellite altimetry data. In addition, we evaluate the role of the North Atlantic Oscillation and the wind
Why Indian largest river island Majuli is shrinking: biophysical and fluvial geomorphological study through historical multi-temporal satellite imageries
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The present study on Majuli island, the largest India river island of the Brahmaputra, aims to studying why it is shrinking. For that biophysical and fluvial geomorphological studies have been done through historical multi-temporal satellite imageries. The Majuli island is located
An overview of protected satellite communications in intelligent age
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Protected satellite communications (SatComs) exhibit specific characteristics such as security, intelligence, anti-jamming, and nuclear disaster survivability. They constitute one of the key research topics in modern military communications and have become the basic
Satellite and modelling based snow season time series for Svalbard: Inter-comparisons and assessment of accuracy (SATMODSNOW)
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Consistent long-term datasets on snow cover and snow depth/snow water equivalent over Svalbard are scarce and affected by great uncertainties. Remote sensing provides a good platform for large-scale snow monitoring. Due to the scarcity of synoptic stations that
End of Life Deorbit Service with a Pulsed Laser Onboard a Small Satellite
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To improve the post mission disposal (PMD) rate of the satellites and provide future active debris removal (ADR), SKY Perfect JSAT Corporation has begun designing a brand-new end-of-life (EOL) deorbit service satellite to remove nonfunctional satellite targets from orbit
Systematic detection of local CH4 anomalies by combining satellite measurements with high-resolution forecasts
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In this study we present a novel monitoring methodology to detect local CH4 concentration anomalies worldwide that are related to rapidly changing anthropogenic emissions that significantly contribute to the CH4 atmospheric budget. The method uses high resolution (7
Towards Accurate Orbit Determination using Semi-analytical Satellite Theory
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Space agencies generally use numerical methods to meet their orbit determination needs. Due to the ever increasing number of space objects, the development of new orbit determination methods becomes essential. DSST is an orbit propagator based on a semi
Land Cover Change Detection in Kuching, Malaysia Using Satellite Imagery
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Land cover maps symbolize integrated information about the universal status of specific areas. Land cover critical in many purposes as the baseline in the planning and monitoring of each development of a place in creating a balance of development between the
Remotely Incorrect Accounting for Nonclassical Measurement in Satellite Data on Deforestation
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Research relying on remotely sensed data on land use and deforestation has exploded of late. Given the advantages of satellite imagery, this clearly represents progress. However, researchers unfamiliar with the collection process overlook an important feature of the
Amendments to GPS Satellite Frequency Corrections
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Abstract The Global Positioning System (GPS) employs satellites in medium earth orbit (MEO) to aid travel in the West by providing exact positioning. Relativity theory indicates that clock frequency corrections are required for precise positioning between the Earth and
STATISTICAL PROPERTIES OF AURORAL KILOMETER RADIATION: BASED ON ERG (ARASE) SATELLITE DATA
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In this work, we have studied the signals of auroral kilometer radiation (AKR) from sources in the auroral regions of the Northern and Southern hemispheres simultaneously recorded by one satellite . We have carried out a detailed statistical analysis of more than 20 months of
Satellite Imagery Security Application (SISA)
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Abstract With the large-scale research and development in space sciences, space technologies, and network communication technologies, there is a great demand of satellite imagery security system for providing secure storage and transmission of satellite imagery over
NOMA Application to Satellite Communication Networks for 5G: A Comprehensive Survey of Existing Studies
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The 4th generation of communication networks (4G) seems limited and unable to satisfy the growing networks performances demands of new intended communication services such as the internet-of-things (IoTs). The 5th generation of communication networks (5G) has A dynamically modified load balancing routing strategy, named Dynamic Modified routing table based on Load Balance (DMLB) was proposed in this manuscript for the problem of congestion and packet loss, which was caused by uneven distribution of business traffic in
Prediction of Short-Term Morphological Change in Rapti River System Using ARIMA Model and Multi-Temporal Landsat Satellite Imageries
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In this paper, a new stochastic method has been presented for prediction of short-term morphological change, and bankline system using ARIMA model and multi-temporal Landsat satellite imageries in the meandering river. Multi-temporal satellite remote sensing
Applicability of the Langley Method for Non-Geostationary In-Orbit Satellite Effective Isotropic Radiated Power Estimation
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The effective isotropic radiated power (EIRP) is a crucial parameter characterizing the transmitting antennas of a radio frequency satellite link. During the satellite commissioning phase, the requirements compliance of communication subsystems is tested. One of the
Categorizing and measurement satellite image processing of fire in the forest greece using remote sensing
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This paper has been utilized satellite Sentinel-2A imagery, this satellite is a polar-orbiting, multispectral high-resolution to cover Athens city, greece that located at latitude (37 58′ 46 ″) N,(23 42′ 58 ″) E., the work aims to measurement and study the wildfires natural
Compressed sensing for satellite characterization
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Characterization of space objects around the Earth is an essential step in space situational awareness. However, direct resolved imaging is rarely possible because of the large distances between a sensor and an object. This research discusses a potential application
Lake Urmia level in based on satellite altimetry
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Page 1. 1 Lake Urmia level in based on satellite altimetry Omid Memarian Sorkhabi (omidmemaryan@gmail.com) Department of Geomatics Engineering, Faculty of Civil Engineering and Transportation, University of Isfahan, Isfahan, Iran. Abstract In this paper, the final output of
Contrasting impacts of forest on cloud cover based on satellite observations
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Forests play a pivotal role in regulating climate and sustaining the hydrological cycle. The biophysical impacts of forest on clouds, however, remain unclear due to the lack of direct observations. In this first global-scale observational study, we use long-term satellitederived Considering the increasing demand for earth observation missions, aiming at the centralized cooperative mission planning problem of remote sensing satellites, analyzing the constraints in the operation of satellites while considering the load and platform operation, andAbstract Satelliteassisted Internet of Things (IoT) communications, artificial intelligent (AI) empowered wireless communications have been expected as two of the key enablers for 6G visions, since they can help 6G achieve better intelligence, coverage in diverse scenarios
Comparison LAI estimates from of high resolution satellite observations using different biophysical processors
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Earth observation provides timely and spatially explicit information on crop phenology and vegetation dynamics that can support decision making and sustainable agricultural land management. Vegetation spectral indices calculated from optical multispectral satellite
Growth and Survival of Satellite Glial Cells in Different Culture Supplementations
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Background: In dorsal root ganglion (DRG), satellite glial cells (SGCs) tightly surrounded neurons and modulated microenvironment and sensory transmission. However, the biological properties of primary SGCs in culture were not fully understood. In the present
Wideband Dual Polarized Compact Design of Pi-Shape Microstrip Antenna for GSM, ISM, and Satellite Applications
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The design of a compact Pi-shape microstrip antenna for dual-polarized wideband response is proposed. The Pi-shape geometry is realized by modifying a compact C-shape patch. The two stubs placed on the Pi-shape patch edge optimize the spacing in between the higher Opencast (coal) mining activities significantly affect the society and environment in several aspects, including land-useland-cover (LULC) alteration. The present study aims to quantify the alteration in LULC patterns in every 4 year from to in the Jharsuguda coal
Cross-Calibrations of the HY-2B Altimeter Using Jason-3 Satellite During the Period of April September 2020
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In 201 the Haiyang-2B (HY-2B) satellite altimeter was sent to orbit as a follow-up mission of the HY-2A satellite altimeter. The performance of the HY-2B system over the global oceans is considered to be critical. However, its performance is not fully known at the
SVD-Aided EKF with Process Noise Covariance Adaptation Applied to Satellite Attitude Dynamics.
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An attitude estimation scheme is designed with the process noise adaptation rule in the extended Kalman filter (EKF) algorithm for a spacecraft in low Earth orbit. The adaptations are designed for compensating the external disturbances by updating the process noise
Sum-capacity of Uplink Multiband Satellite Communications with Nonlinear Impairments
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A compact and closed-form expression of capacity is derived for a uplink multiband satellite system in the presence of nonlinear interference. The nonlinear effect comes from the satellite high-power amplifier modeled by a Volterra series expansion. The derivations
Detection of total water mass changes in the Patagonian glaciers area by satellite gravimetry
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La gravimetría satelital es una herramienta que aún no se aplica en profundidad para estudiar áreas relativamente extensas en los Andes de Argentina y Chile, a pesar de los esfuerzos actuales para lograr una mejor comprensión de los cambios en los glaciares y sus tendencias En
USE OF SATELLITE TRANSPORT MONITORING SYSTEMS FOR THE QUALITY OF BUS MANAGEMENT ON THE LINE
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The possibilities of using satellite transport monitoring systems for the quality of bus management on the line, in order to prevent conflict and emergency situations, are considered. Statistical data on accidents on the line of a small bus company and theRemote sensing technologies can provide detailed assessments of the state of Protected Areas, including critical information on threats (such as deforestation and wildfire), while also facilitating habitat evaluation and change detection. A multitude of satellitebasedRain attenuation plays a significant role in satellite communications in the Ka band. The paper studied the rain attenuation using empirical formulations of the prominent models like ITU-R P. 618-1 ITU-R P. 838- Moupfouma, and Garcia Lopez. At a rain rate of 47.6
Investigating the Role of Ideological Programs of Vesal Satellite Network in Religion Conversion among the Citizens of Khuzestan
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This study aims at investigating the role of ideological programs of Vesal satellite network in religion conversion among the citizens of Khusestan and working out some scientific and practical strategies to control or reduce the effects of this phenomenon in this province. The
Mapping Paddy Rice with Satellite Remote Sensing: A Review. Sustainability 202 1 503
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Paddy rice is a staple food of three billion people in the world. Timely and accurate estimation of the paddy rice planting area and paddy rice yield can provide valuable information for the government, planners and decision makers to formulate policies. This
of homogenized radiosounding temperature, humidity and wind profiles with uncertainties. Part II: comparisons with reanalysis, satellite data and validation of
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Observational records are more often than not influenced by residual non-climatic factors which must be detected and adjusted for prior to their usage. Moreover, measurement uncertainties should be properly quantified and validated. In this work we present a novel
Deep Multi-Sensor Domain Adaptation on Active and Passive Satellite Remote Sensing Data
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Access to this work was provided by the University of Maryland, Baltimore County (UMBC) ScholarWorks@UMBC digital repository on the Maryland Shared Open Access (MD-SOAR) platform Deep Multi-Sensor Domain Adaptation on Active 2nd NOAA Workshop on Leveraging
Self-supervised multi-image super-resolution for push-frame satellite images Supplementary material
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Our DSA architecture (see Figure 1) has 4 major modules: Motion estimator, Encoder, Feature Shift-and-add, and Decoder. The Feature Shift-and-add block does not have any trainable parameters. Our motion estimator follows the work of . Our encoder and our
Enhancing of iron containing minerals using satellite images and spectroscopy technique (Case study: North Saveh)
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The interaction of hot aqueous fluids with host rocks produce the hydrothermal mineral deposits (Pirajno). One of the way for iron mineral formation is that hot aqueous solutions rich in iron with proper temperature, pH, and suitable EH react with rock walls that