基于载波相位平滑伪距技术的GPS/INS组合导航

GPS/INS INTEGRATED NAVIGATION BASED ON PHASE SMOOTHING PSEUDORANGE

给出了基于载波相位平滑伪距技术的GPS/INS组合导航的公式并进行了误差分析。用算例对该算法进行验证,结果表明:如果GPS周跳较少或不发生周跳,基于载波相位平滑伪距技术的GPS/INS组合导航的精度较伪距紧组合导航有较大的提高;反之,精度提高不显著。

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 real-time 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.