SOJ与虚假目标复合干扰下目标跟踪技术

A Tracking Technique for Radar in the Presence of SOJ and False Target Jamming

在远距离支援干扰下,由于目标检测概率降低,雷达容易出现检测不到目标真实回波的现象,如果此时再施放虚假目标干扰,由于虚假目标回波比目标回波幅度强,雷达更容易误将虚假目标干扰回波当成真实目标的回波。针对上述特点,提出了采用卡方检验,SNR检验鉴别虚假目标,采用集中式雷达网数据处理方法对目标进行跟踪。仿真实验表明,此种方法降低了虚假目标的误鉴别概率,同时也可以较好地实现了干扰下目标的跟踪,具有一定的实际工程意义。

In the presence of SOJ,the target＇s probability of detection decreases and the echo of target can＇t be detected.If the false target jamming is used simultaneously,the echo of false target will be detected as target wrongly,because the SNR of false target is higher than the target return.Aimed at these problems,the paper presents a method based on Chi-square test and SNR test to discriminate false target.And the target is tracked by central processing algorithm.The simulation results show that the algorithm presented in this paper can decrease the probability of false target error discriminating and has a good performance on target tracking.