一种提高多基地天波雷达目标定位精度的方法  

A Method for Improving Target Location Accuracy of Multi-Static Sky-Wave Over-the-Horizon Radar

作　　者：贺承杰[1] 杨彬[2] 杜保平 HE Chengjie;YANG Bin;DU Baoping(The 27th Research Institute of China Electronics Technology Group Corporation,Zhengzhou 450007,China;Zhengzhou Institute of Science and Technology Information,Zhengzhou 450005,China)

机构地区：[1]中国电子科技集团公司第二十七研究所,郑州450007 [2]郑州市科学技术情报研究所,郑州450007

出　　处：《电子信息对抗技术》2024年第3期35-41,共7页Electronic Information Warfare Technology

摘　　要：分析了引起多基地天波雷达目标定位误差的原因,对测距误差和定位模型误差两种影响定位精度的主要因素进行了仿真计算。比较发现,定位误差主要来源于多站定位模型,由定位模型中电离层虚高的假定条件与实际不符所引起。给出了减小模型误差,提高定位精度的方法。以某多基地天波雷达系统为对象,对修正后的定位模型进行了不同误差条件下的模拟测试,并利用系统对目标船的跟踪数据进行了验证。结果表明,模型改进后目标定位的精度得到了较大程度的提高。The causes of target positioning errors of multi-static sky-wave radar are analyzed.Two main factors affecting positioning accuracy,ranging error and positioning model error are simulated and calculated.It is found that the positioning error mainly comes from the multi-station positioning model,which is caused by the inconsistency between the assumed conditions of ionospheric virtual height and the reality.The method of reducing model error and improving positioning accuracy is given.Taking a multi-static sky-wave radar system as the object,the modified positioning model is simulated and tested under different error conditions,and verified by using the tracking data of the target ship.The results show that the accuracy of target positioning is greatly improved after the model improvement.

关 键 词：天波雷达 多站联合定位 误差分析 定位精度 电离层虚高 

分 类 号：TN958.93[电子电信—信号与信息处理]