GPS/INS INTEGRATED NAVIGATION BASED ON PHASE SMOOTHING PSEUDORANGE
Wu Fumei 1,2) ; and Tang Yingzhe 2)
1)Institute of Surveying and Mapping,Information Engineering University,Zhengzhou 4500522)Xi’an Research Institute of Surveying and Mapping,Xi’an 710054
Abstract：The phase smoothing code method is introduced into the GPS/INS tight integration. It could improve the navigation accuracy without the reference station and the kinematic realtime ambiguity resolution. Through the calculation of a sample, it is shown when cycle slip occurs few times during a period, the method of phase smoothing code can improve the accuracy of GPS/INS integration greatly, but if cycle slip occurs many times then the accuracy of GPS/INS integration will be improved slightly.
