有源无源一体模式下目标定位及其精度研究分析

Analysis on Target Location and its Precision in Integrative Mode of Active Location and Passive Location

在分析两站无源交叉测向平面定位的基础上，提出一种测向、时差联合定位的模型，并分析了其定位原理和精度；推导了组网雷达的探测精度表达公式，并比较了单站、两站、三站雷达定位精度的差异。在此基础上，结合有源组网探测的优点和无源侦察只被动接收、不辐射信号的优点，提出了有源无源一体模式下的目标定位模型及其定位精度分析，并对五站定位中的两种不同情况进行了仿真和分析，仿真结果表明，有源无源一体模式下的目标定位方式能有效地对目标进行定位并有良好的定位精度。

Based on the analysis on the 2 stations passive crossing location, an united location model of direction detection and time different location is advanced, and its principles and location precision are analyzed. The location precision formula of multi-station radars is deduced, and the location precision differences among 1,2, and 3stations are compared. Based on this and combined with the advantages of the active multi-stations detection and the passive , the target location model and its precision analysis in integrative mode of active location and passive location are put forward. At last, two different conditions in 5 stations passive location are simulated and analyzed,and the results show the target location model in integrative mode of active location and passive location is effective, and its precision is good.