现代雷达2026，Vol.48Issue(3)：73-79,7.DOI:10.16592/j.cnki.1004-7859.20240818003
基于距离和—测向交汇定位的三坐标外辐射源定位精度分析
Precision Analysis of Three-coordinate Passive Coherent Location Based on Range-sum and Direction Intersection Positioning
马献德 1许磊 1朱旭东 1张南根 1朱光华1
作者信息
- 1. 南京电子技术研究所,江苏 南京 210039
- 折叠
摘要
Abstract
For passive coherent location radar based on range-sum and direction intersection positioning,according to the measure-ment equations of range-sum and direction of the target,an analytical form of the two-coordinate location accuracy is derived as a function of the target location,the range-sum measurement precision,the direction measurement precision,and the site location measurement precisions of the transmitter/receiver station,via an analysis framework based on the error covariance.Using the same method,the analytical form of the three-coordinate location accuracy is thereafter also deduced by adding the measurement equation of target elevation.Based on the analytical forms of the location accuracy,the typical spatial distributions of the location accuracy are analyzed theoretically for both the two-coordinate and three-coordinate cases.In the typical application scenarios of three-coordinate passive coherent location radar,such as"air-to-ground"and"space-to-ground"configurations,the simulations are carried out with reasonable parameters.The simulation results of geometric dilution of precision coincide with the theoretical analysis,which validates the effectiveness of the proposed analysis method and the derived analytical form for target location accuracy.关键词
三坐标/距离和—测向交汇定位/外辐射源雷达/精度几何分布/解析形式Key words
three-coordinate/range-sum and direction intersection positioning/passive coherent location radar/geometric dilution of precision(GDOP)/analytical form分类
信息技术与安全科学引用本文复制引用
马献德,许磊,朱旭东,张南根,朱光华..基于距离和—测向交汇定位的三坐标外辐射源定位精度分析[J].现代雷达,2026,48(3):73-79,7.
