编队目标架次检测方法研究

A Study of Methods in Identifying Targets Sortie in Formation

针对常规低分辨雷达无法直接在距离和方位上分辨同一批次中目标的缺陷,分析了编队目标雷达回波信号的时频特征,提出了一种基于平滑的伪Wigner-Ville分布来提取编队目标雷达回波中的架次信息的方法。该方法不仅能可靠检测目标架数,而且有一定的抗噪声和抗干扰能力。仿真试验验证了该方法的有效性,优于常规的WVD分布。

In view of the defect that a conventional low-resolution radar fails to directly resolve targets flying in formation in both range and azimuth, the radar echo signals of multi-targets in formation are analyzed for time-frequency characteristics. A method is proposed, which is used for extracting the sortie information from the formation target radar echo on the basis of smoothed pseudo - WVD distribution, and such a method is used not only for identifying target sortie number reliably, but also for resisting noise and interference. The experimental results illustrate that the efficiency of the method is superior to that of the conventional WVD distribution.