北斗/罗兰组合导航系统中伪距导航定位解算新算法研究

为提高北斗／罗兰组合导航系统伪距导航定位解算的精度和改善对动态目标的实时跟踪，本文提出了一种新方法，采用镜像映射法解具有病态的矛盾方程组以提高精度，以及将伪距导航定位解算方程模型转换为具有贯序输入输出数据的系统辨识模型，然后用递推最小二乘法，对所求的北斗／罗兰组合导航系统伪距导航定位信息一接收机的三维位置参数和时钟误差参数进行动态快速实时估计。

Pseudo-distance navigation locating in Big Dipper/Loran integrated navigation system

A new method is presented for increasing the accuracy of the pseudo - distance navigation and improving the real - time tracking of the dynamic object for Big Dipper/Loran integrated navigation system. The method of mirror- image is used to solve inconsistent equation for improving accuracy, and the equation of the pseudo - distance navigation is converted into the system identification model which has sequential input - output data. Then recursive method of least square is used for fast, dynamic and real - time estimation of the pseudo - distance navigation information in Big Dipper/Loran integrated navigation system, i.e. tridimensional positional parameters and timing clock error parameter.