Optimization of GNSS Navigation and Positioning Signals for Net-Connected Vehicles Based on Solving Re-Expansion Algorithm
In order to further improve the stability of global navigation satellite system(GNSS)navigation and positioning signals for connected vehicles,a method of analyzing the error of GNSS navigation and positioning signals for connected vehicles based on de-expansion algorithm is designed to realize the generation of zero-trapping in the direction of the interference of satellite signals and the generation of beam gain in the incoming direction.The research results show that:the difference between the receiver carrier frequency and the carrier frequency after reexpansion is large,the influence of DR on the carrier phase makes the carrier phase deviation increase gradually,and the frequency estimation is utilized to accurately obtain the frequency estimation results,which effectively solves the huge difference between the satellite and the reexpanded carrier.This research has certain theoretical guiding significance to ensure the accurate transmission of satellite signals.
internet-connected vehicleglobal satellite navigation systemde-re-expansion algorithmnavigation and localizationsignal error
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