机载有源相控阵雷达关键性能指标测试方法

Sensitivity Testing of Airborne Active Electronically Scanned Array Radar

现代相控阵雷达集成度高、带宽大、相控阵天线极其复杂,为保证雷达的最优性能,需要对雷达关键性能指标进行高效、定量测试。而PG值、灵敏度、雷达指向精度和波束宽度测试分别代表雷达探测远距离目标及微弱信号的能力、雷达跟踪精度的重要指标。在雷达交付使用前,需要对其进行自动、高效、准确测试,确保满足设计指标要求。随着计算机自动控制、测试技术的应用,研究高效、准确的测试方法都有着重要的现实意义。

Modern phased array radar has high integration,wide bandwidth and extremely complex phased array antenna.In order to ensure the optimal performance of the radar,it is necessary to test the key performance indicators of the radar efficiently and quantitatively.The PG value,sensitivity,radar pointing accuracy and beam width test respectively represent the important indexes of radar's ability to detect long-distance targets and weak signals,as well as radar tracking accuracy.Before the radar is delivered for use,it needs to be tested automatically,efficiently and accurately to ensure that the requirements of design indicators are met.With the application of computer automatic control and testing technology,it is of great practical significance to study efficient and accurate testing methods.