Design and implementation of GPS reflections software receiver

摘要

The paper contrast varied GNSS (Global Navigation Satellite System) reflections software receivers with hardware receivers. Both the architecture and the components for GPS reflections software receiver were presented including direct signals and reflections antennas, two channel RF (radio frequency) front ends, high speed A/D converter and the workstation for data processing. Principle original signal receiving and original date process was introduced. The implementation method and signal processing process of GPS reflections software receiver were elaborated on, and program flow chart and processing method of capture and track was presented. At last, we conducted sea altimetry based experiment on shore of Bohai Bay. The experimental error is within the allowable range which verify the practicality of our software receiver system.