GPS Global Positioning System-2020



The global positioning system is a satellite-based navigation system consisting of a network of 24 orbiting satellites that are eleven thousand nautical miles in space and in six different orbital paths. The satellites are constantly moving, making two complete orbits around the Earth in just under 24 hours.

Real-time Alarm, Dynamic GPS Tracking, and Monitoring System for Man Overboard
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Ships are the most important means of transportation for maintaining the marine economy in most countries. Coastal patrol is an important task of the state to prevent smuggling and other dangerous coastal activities. However, unfortunate accidents involving people on

Positioning precision of GPS /Galileo integration in Vietnam
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The design of Galileo has been conceived so as to facilitate its possible joint use with GPS thus contributing to a favorable multi-GNSS environment. Evaluating the performances of such multi-GNSS combination is crucial for end users to assess the quality of obtainable

Implementation and Analysis of Signal Tracking Loops for Software Defined GPS Receiver
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Software defined GPS receiver has been developing because it can be processed advanced signal algorithms and also developed for precise navigation. Signal processing modules such as signal acquisition, signal tracking and navigation demodulation are

Online geocode in postal address using gps with synchronous database accessing
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Postal addressing information is a crucial issue in any organization for business targets, especially in developed countries. Thus, required to convert postal address data to an absolute value like latitude and longitude coordinates by a procedure called geocoding. In

GPS /INS Integration for Vehicle Navigation based on INS Error Analysis in Kalman Filtering
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Abstract The Global Positioning System ( GPS ) and an Inertial Navigation System (INS) are two basic navigation systems. Due to their complementary characters in many aspects, a GPS /INS integrated navigation system has been a hot research topic in the recent decade

3DVAR ASSIMILATION OF GPS AND METEOROLOGICAL OSERVATIONS IN MM5 DURING THE DECEMBER 14 TH STORM EVENT OVER THE WESTERN
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The impact of GPS Zenith Total Delay (ZTD) measurements on mesoscale weather forecasts is studied. GPS observations from a permanent European network are assimilated into the Penn State/NCAR Mesoscale Model (MM5) using its three-dimensional variational

Contemporary GPS Security Mechanisms
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GPS (Global Positioning System) plays a big role in day to day activities. From navigation to tracking devices, all are dependent on GPS . As the attacks on GPS have increased so the review of GPS security plays a vital role in research. This paper looks at different spoofing

The Diverse Properties of GPS Sources
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We discuss the morphology and kinematics of five gigahertz-peaked spectrum ( GPS ) sources that have been observed with the VLBA. We find a wide range of observed properties including core-jet structure, superluminal motion, variability, extended structure

GPS Spoofing-Resilient Voltage Phasor Estimation for the Power Grid
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Installation of Phasor Measurement Units (PMUs) is a step towards achieving wide-area situational awareness as PMUs provide synchronized measurements using GPS time. GPS signals are susceptible to GPS Spoofing Attacks (GSAs) due to its unencrypted signal

OLSR with GPS information
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In this paper we examine security issues related to the Optimized Link State Routing protocol, a proactive routing protocol for MANETs. We enumerate a number of possible attacks against the integrity of the OLSR routing infrastructure, and present a technique for

SMART FAMILY TRACKING SYSTEM USING GLOBAL POSITIONING SYSTEM ( GPS )
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ABSTRACT Smart Family Tracking System using Global Positioning System ( GPS ), is an application that can track and monitor the childs location. Child monitoring always comes to a problem for those parents who are busy and have a lack of time to monitor their child. The