Tracking loops design and bandwidth optimization for SINS-aided GPS receiver

Abstract

With The structural design of the INS-aided (Inertial Navigation System-aided) receiver tracking loops is the main part of implementing an SINS(Strapdown Inertial Navigation System)/GPS Ultra-Tightly Coupled Integrated Navigation System, and the loop bandwidth is the key factor to determine the performance of the tracking loop. Considering satellite signals are easy to be out of locking in high dynamic environment, the INS Velocity Information receiver tracking loops to increase the effective bandwidth of tracking loop is designed in this paper. The Simulation results show that inter-restricted relationship between the thermal agitation noise error and the dynamic stress error in the carrier tracking loop.