数字自相关检测技术在电子侦察接收机中的应用 |
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作者姓名: | 杨润峰 徐刚 |
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作者单位: | 北京遥测技术研究所 北京100076 |
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摘 要: | 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。
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关 键 词: | 电子侦察接收机 系统灵敏度 数字自相关 大时宽带宽积信号 |
Application of the Digital Auto-correlation Detection Technique in the Electronic Reconnaissance Receiver |
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Authors: | Yang Runfeng Xu Gang |
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Abstract: | 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. |
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Keywords: | Electronic reconnaissance receiver System sensitivity Digital auto-correlation Large time-bandwidth product signal |
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