一种雷达和侦察数字接收技术的设计与实现

The Design and Implementation of Digital Receiving Technology for Radar and Reconnaissance

中频数字接收部分是整个雷达和侦察设备的关键组成部分。基于雷达和侦察的数字接收技术包括窄带雷达处理和宽带侦察处理两部分。其中窄带处理包括幅相校正、窄带数字波束形成(DBF)和数字下变频部分,宽带处理包括数字信道化和宽带DBF部分。工程实现中,宽窄带处理在同一片板卡中实现,这样有利于设计和节约成本。最后,实验结果表明了该设计技术的正确性。

The intermediate frequency digital receiving part is the key component of radar and recon- naissance equipments. In this paper, the digital receiving technology based on radar and reconnais- sance includes two parts：narrowband radar processing and broadband reconnaissance processing. Narrowband processing includes amplitude phase correction, narrowband DBF and digital down fre- quency conversion. Broadband processing includes digital channelization and broadband DBF. In en- gineering realization,broadband/narrowband processing is realized in the same printed card,which is helpful for design and cost savings. Finally, the experimental results show that the correctness of the proposed design techniques.