基于线段二分法的GNSS—R镜面反射点估计算法

通过研究GNSS—R基本几何关系和S．C．Wu镜面反射点估计算法，提出了基于线段二分法镜面反射点位置估计算法，并利用位移与速度之间的关系，论述了基于线段二分法算法在镜面反射点速度估计中的可行性。为了验证本文提出的算法的正确性，利用MATLAB仿真软件和STK仿真软件对已有镜面反射点估计算法和本文提出的算法进行了仿真分析。仿真结果表明：基于线段二分法算法可以正确估计GNSS—R镜面反射点位置信息和速度信息。

The Algorithm for the Determination of the GNSS-R Specular Point Based on the Dichotomy of the Line Segment

This paper proposes an iteration algorithm for the determination of the specu- lar point based on the dichotomy of the line segment through studying the basic geometric re- lationships of GNSS-R and the S. C. Wu algorithm, and demonstrates that the algorithm based on the dichotomy of the line segment can determine the velocity of the specular point. To verify the feasibility of the algorithms in determining the specular point, the paper makes the simulation about existing algorithms and the algorithm proposed by the paper making use of the MATLAB and STK. The result of the simulation demonstrates that the algorithm based on the dichotomy of the segment can determinate the position and velocity of the GNSS-R specular point correctly.