影响无源定位精度的多种误差原因分析

无源定位精度作为对目标定位最为核心的一个技术指标,其定位技术方法有测向/ 交叉定位法、单站快速定位法、比相定位法、测时差定位法、测向/时差定位法、多普勒频率定位法、方位和频率定位法、相位差变化率和多普勒变化率定位法等。同时,比幅测向误差、定位模糊区、系统随机误差、定位站配置与布站方式、多径传输、时差、多普勒频移等多种因素均会对定位精度产生影响。文中主要探讨无源定位的分类及技术方法,分析多种误差影响无源定位精度的原因,以及减小影响无源定位精度的方法。

Analysis of Multi-error Influence on Passive Orientation Precision

Passive orientation precision is the core technology indicator to orientate target. There are eight passive orientation methods, such as direction-finding/cross location, rapid location of single station, phase comparison positioning,time difference arrival location, direction-finding/phase comparison positioning, Doppler frequency location, direction and frequency location, phase and Doppler frequency difference rate of change location. Meanwhile, there are seven influence factors, such as specific amplitude and direction finding error, location fuzzy region, system random error, location station configuration and station mode, multipath transmission, time difference and Doppler frequency difference. Passive orientation''s classification and technology methods are discussed in this article,the reason of multi-error influence passive orientation precision and the methods of how to reduce the influence are analysed in the article also.