多站无源雷达作用距离和覆盖范围分析

多站长基线时差定位雷达是无源雷达的重要分支。文中在定义平均副瓣增益的基础上描述了无源雷达的雷达方程,详细分析了各种因素对其作用距离的影响;并针对多站长基线时差定位无源雷达的特点,提出了其探测覆盖范围的计算方法,利用地理高程信息进行了仿真。结果表明:该方法可应用于多站无源雷达的站址规划和探测效能评估,可用于指导无源雷达总体设计和工程试验。

Analysis of Action Distance and Detection Coverage of Multi-station Passive Radar

Multi-station long baseline time difference of arrival(TDOA) positioning radar is an important branch of passive radar.This paper gives the radar equation of passive radar based on the definition of average sidelobe gain and the influence of various factors on its operating range is analyzed in detail. A method is proposed to calculate the detection coverage of four-station long baseline TDOA positioning radar based on its characteristics,and the simulation is carried on by using geographic elevation information.The results show that the method can be applied to the site planning and detection efficiency evaluation of the multi-station passive radar,which can guide the overall design and engineering experiments of passive radar.