一种新的GPS快速整周模糊度解算算法  

A New Algorithm for GPS Fast Carrier Phase Ambiguity Resolution

作　　者：杨铁军[1] 付毓生[1] 黄顺吉[1] 

机构地区：[1]电子科技大学电子工程学院,成都610054

出　　处：《信号处理》2002年第5期460-463,共4页Journal of Signal Processing

摘　　要：本文实现了一种新的GPS快速整周模糊度解算算法,首先采用Kalman滤波估计初始浮点模糊值,然后采用FASF（快速模糊度搜索滤波器）和Z变换联合的方法解算整周模糊度,并给出了计算机实验结果。相对于传统的模糊度解算算法,本文采用的整周模糊度解算方法具有效率更高、更便于实时和动态应用的特点,本文的研究可作为GPS实时高动态定位和GPS实时姿态测量的工程应用的参考。In this paper, A new algorithm for fast carrier phase ambiguity resolution was implemented. The first step is the determination of an initial approximate solution using Kalman filtered float solution. Then, Integer ambiguity was resolved utilizing the Z-transformation augumented FASF(Fast Ambiguity Search Filter) algorithm. The test results show that the algorithm introduced in this paper can improve the efficiency of the ambiguity search and be more fit to real-time and dynamic condition compared with traditional ambiguity resolution algorithm. The research work in this paper should be valuable in the project application and the theory research of GPS real-time attitude determination or GPS real-time high dynamic position.

关 键 词：GPS 卡尔曼滤波 整周模糊度解算 Z变换 残差比检测 全球定位系统 

分 类 号：P228.4[天文地球—大地测量学与测量工程]