高频雷达工作频率优选方法研究

Research into Optimum Selection Method of Operating Frequency for HF Radar

高频雷达能够实现对视距外目标的探测和跟踪,有广泛的军事应用前景。随着高频雷达的不断发展,雷达工作频率优选方法成为一个重要研究课题。提出了基于信杂比最大的高频地波雷达工作频率优选准则,并对准则中的地波传输损耗和目标的雷达截面积与雷达工作频率的关系进行了讨论,最后得出频率优选方法。该方法能够针对不同类型的探测目标选出雷达最优的工作频率,对高频雷达设计和运用具有指导意义。

High frequency （HF） radars can detect and track targets beyond the horizon, so it has wide application prospect in military affairs. With the development of HF radars,the optimum se- lection method of radar operating frequency has become an important research topic. This paper presents an optimum selection rule of operating frequency for HF ground wave radars based on maximal ratio of signal to clutter,and discusses the relationship between ground wave propagation loss, radar cross section of target and radar operating frequency in rules, finally gives the optimum frequency selection method. The method can select the optimum operating frequency of HF radar for different types of detected targets, which has guidance significance for the design and applica- tion of HF radars.