数字自相关检测技术在电子侦察接收机中的应用

现代雷达通常采用脉冲压缩、超低副瓣天线等相关技术来降低雷达信号的被截获概率,这给电子侦察接收机的信号检测带来了困难。文中提出在数字信道化接收机基础上,采用子信道内数字自相关检测技术对来波信号进行相关运算,获得较大的处理增益,提高系统接收灵敏度,并且算法运算量较小,适合实际工程应用。

Application of the Digital Auto-correlation Detection Technique in the Electronic Reconnaissance Receiver

In modern radars,the intercepted probability,which brings difficulty to the signal detection in the electronic reconnaissance receiver,is always reduced by certain techniques,such as pulse compression technique and ultra-low sidelobe antenna.In this paper,based on the technique of digital channelized receiver,the auto-correlation detection algorithm in sub-channels is studied.With this method,the processing gain and system sensitivity are distinctly improved.As a result,the method is computationally efficient and is adapted for the application.