浮标CODAR阵探测定位精度分析  

Impact Analysis of the Location Accuracy on Sonobuoy Array of CODAR

作　　者：何建伟[1] 蔡爱华[1] HE Jian-wei;CAI Ai-hua(Academy of Electronics and Information Technology,China Electronics Technology Group Corporation,Beijing 100041,China)

机构地区：[1]中国电子科学研究院,北京100041

出　　处：《中国电子科学研究院学报》2018年第4期439-445,共7页Journal of China Academy of Electronics and Information Technology

基　　金：中国电科军工预研项目

摘　　要：多枚被动全向浮标组成的CODAR(Correlation Detection And Ranging)阵,可实现对潜艇目标的探测定位。根据浮标对的时延测角原理,采用基于几何精度衰减因子(GDOP)的定位精度模型分析各误差源对测角精度的影响。分析表明,时延误差对测角影响较大。除自身探测误差源影响外,工程应用时带来的布阵误差也对CODAR阵定位精度分布产生影响。给出综合考虑各误差源时CODAR阵的测角误差分布结果。结果表明,通过控制布阵误差及浮标对间距,可改善CODAR阵的探测定位精度。The combination of passive omni-directional sonobuoys can be applied to detect the location of submarine in the way of Correlation Detection and Ranging（CODAR）. Based on the detection principle of CODAR,the accuracy of detected target’s location was analyzed by the model of Geometry Dilution of Position（GDOP）. The analysis showed that the delay between two sonobuoys detection in CODAR had a significant impact on the detection accuracy. The deploying errors of CODAR array in the actual application also had an impact on the distribution of detection accuracy. With these error sources,the distribution map of GDOP was presented. The results indicated that by controlling the deploying error and the distance between the pair of CODAR sonobuoys,the location accuracy of CODAR array could improve.

关 键 词：浮标阵 CODAR 定位精度 布阵误差 

分 类 号：U666.7[交通运输工程—船舶及航道工程] E926.38[交通运输工程—船舶与海洋工程]