海上动平台间测距测向误差分析  

Error analysis of ranging and direction finding between ocean mobile platforms

作　　者：吕盼盼 顾苏 王雪琦 付林 LV Pan-pan;GU Su;WANG Xue-qi;FU Lin(The Eighth Research Academy of CSSC,Nanjing 211153)

机构地区：[1]中国船舶集团有限公司第八研究院,南京211153

出　　处：《雷达与对抗》2023年第3期24-27,36,共5页Radar & ECM

基　　金：装备预研基金项目(No.61404130218)。

摘　　要：针对站间距在100 km范围内的无源测向交叉定位系统,推导采用中继模式进行信号超视距传输时的测距测向误差计算模型,利用射线追踪法推导在强波导环境下的测距误差计算模型。仿真结果表明,在中继模式下,测向误差和视距时双站相互测向误差基本一致,测距误差受观测站与中继站的几何位置及站间距离影响,当观测站与中继站处于同一直线时,测距误差和视距传输时基本一致;在强大气波导环境下,测距测向误差和视距传输时基本一致,为雷达、通信等无线电电子系统的使用提供了参考和依据。For the passive differential direction of arrival system with a station spacing of 100km,a model is derived for calculating the ranging and direction-finding error in over-the-horizon(OTH)signal transmission in relay mode,and a model is derived for calculating the ranging error in a strong atmospheric duct environment with the ray-tracing method.The simulation results show that in the relay mode the direction-finding error is basically the same as that in the line-of-sight transmission,and the ranging error is affected by the geometrical position of the observation station and the relay station and the distance between them.The ranging error is basically the same as that in line-of-sight transmission when the observation station is in the same straight line with the relay station.In a strong atmospheric duct environment,the ranging and direction errors are basically the same as those in the line-of-sight transmission,providing reference and basis for the use of radar,communication and other radio electronic systems.

关 键 词：超视距传输 大气波导 测距误差 

分 类 号：TN959.72[电子电信—信号与信息处理]