Global ETD Search
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Showing 1 to 7 of 7 for “"Software receiver"”.
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Contributions to a Context-Aware High Sensitivity GNSS Software Receiver
… with low-cost portable user devices. However, receiver performance can be significantly affected by operational environments. High attenuation and severe multipath fading degrade the signal tracking performance and limit the use of GNSS in indoor and urban environments. Therefore, this thesis …
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Implementation of Real-Time Software Receiver for Gps or Glonass L1 Signals
A 12 channel real-time GPS L1 C/A-code software receiver has been implemented on a Desktop with 1.84GHz Intel CPU. The software receiver has the capability to acquire new satellites coming in, keep tracking of satellites in view and give a user solution accuracy of 30 meters. This study also …
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A Multi-Constellation Multi-Frequency GNSS Software Receiver Design for Ionosphere Scintillation Studies
… study, a multi-constellation multi-band GNSS software receiver has been developed based on USRP2, a general purpose radio platform. The C++ class-based software receiver were developed to process the IF data for GPS L1, L2C, and L5 and GLONASS L1 and L2 signals collected by the USRP2 front …
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Signal Acquisition and Tracking for a Software Gps Receiver
… related applications. The hardware-based GPS receivers provide the least user flexibility. Thus, it is necessary to have Software-based GPS receivers for easy and quick implementation, simulation and analysis of algorithms. Software-based GPS receiver processes the GPS signal at the radio …
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Direct position tracking in GPS using vector correlator
Traditional GPS receivers track the code and carrier of individual satellite signals and estimate the position and velocity of the receiver using trilateration. Different from this two-step approach, direct maximum likelihood estimation of position has proved to be beneficial in weak signal and …
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Incorporation of GNSS multipath to improve autonomous rendezvous, docking and proximity operations in space
… (EM) ray tracing, and a custom GNSS software receiver. EM ray tracing is used to show that a number of signals sufficient for ranging are reflected by the Hubble Space Telescope (HST) during HSM4, and the properties of these reflections are used to generate simulated GNSS data. The …
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High-performance velocity, frequency and time estimation using GNSS
GNSS (Global Navigation Satellite System) receivers provide PVT solution, where PVT stands for Position, Velocity and Time. In general, the main interest of the common GNSS user is on the position solution and as a consequence the main focus of the research is the improvement of the position …