机载雷达的空中定位研究

雷达告警器通过接收威胁源的雷达信号,经计算机处理、分析其信号特征,进而判别其类型、方位等信息,实时为空勤人员提供视、听觉告警信号,因而成为现代战机必备的电子对抗设备。以往相关文献中仅讨论了地面雷达对地面目标的定位问题,本文就机载全向雷达告警器的双机空中定位问题,经过严密的数学推导,利用方向余弦给出了威胁源的空间坐标计算公式,该公式简洁明了,程序运行时间短,为对威胁源进行实时监测提供了理论保障,同时本文对定位误码率差从两个角度做了理论分析,并相应给出了误差区和最大误差限。

Research of Air Localization by Airborne Radar

Omnidirectional radar is the necessary electronic counterwork equipment in morden tactical fighter.It functions by accepting the radar signals from the threat,which will be computer-disposed by analyzing the signal character and distinguishing the type,direction,etc.It provides the aircrew with the warning audio-visual signals.In this paper,the author analyzes the two-shipper localization by active service airborne omnidirectional radar,gives the space coordinate formula of the threat with direction cosine by well-conceived maths deducing.This formula is concise and its program running time is short,so it provides the guarantee for monitoring the threat.At the same time,he theoretically analyzes the location errors from two points of views and gives out the error erea and the max-error limit respectively.