小区域GPS短距离定位优化仿真

摘要

研究小区域内的GPS短距离准确定位问题.卫星发射的电磁波由于超强,达到建筑物或障碍物时会被漫反射到各个方向,反射随机性很强且很难控制,对正常的卫星通信信号形成干扰,造成卫星定位信号出现测距偏差.传统的GPS定位方法依靠得到的测距坐标完成区域定位,在受到卫星信号干扰的情况下,很难保证坐标测距的准确性,造成对小区域内的定位精度不高.为解决上述问题,提出了一种静态点位估计算法的小区域GPS短距离定位方法.对采集的CPS信号进行离散化处理,去除信号中的白色噪声.利用静态点位估计方法,获取目标的位置信息,从而实现小区域GPS短距离定位.仿真结果表明,提出的算法能够有效提高卫星信号干扰下的小区域GPS短距离定位的准确性.%This paper proposed a static point estimation algorithm based on small areas of short distance GPS positioning method. Fistly, the collected CPS signals were discretized, and the white noise signals were removed. Using static point estimate method, the location of the object information was obtained, so as to realize the small regional GPS short range positioning. The experimental results show that this algorithm can effectively improve the GPS positioning accuracy of short distance in small area with satellite signal interferences.