卫星导航接收机自主完好性监测可用性判断方法研究

Study on the Availability Judge of Satellite Navigation Receiver Autonomous Integrity Monitoring

本文简要介绍了目前卫星导航中的接收机自主完好性监测(RAIM,Receiver Autonomous Integrity Monitoring)算法和其中常用的三种可用性判断方法:δHmax方法、ARP(Approximated Radial-Error Protected)方法和HPL(Horizontal Protection Lev-el)方法。对这三种可用性判断方法进行了理论分析和比较,证明了δHmax方法和HPL方法的理论等价性。通过计算机仿真对δHmax方法和HPL方法的等价性进行了验证,并给出了三种可用性判断方法在我国部分地区的RAIM算法的可用率。

It briefly introduces satellite navigation receiver autonomous integrity monitoring arithmetic and of which three com- mon availability judgment methods：δHmax ,ARP（Approximated Radial-Error Protected） and HPL（Horizontal Protection Level）. The au- thor analyses and compares the theories of the three and further proves the theory equivalence of δHmaxand HPL. Through computer simulation, he verifies the equivalence of δHmax and HPL and brings RAIM arithmetic availability ratio of the three methods in some areas in our country.