PD雷达导引头数字接收技术的理论与实现  

Theory and Realization of Digital Receiving Technology for PD Radar Seeker

作　　者：白森[1] 

机构地区：[1]中国空空导弹研究院,河南洛阳471009

出　　处：《航空兵器》2006年第4期18-23,共6页Aero Weaponry

摘　　要：论述了PD雷达导引头数字接收技术实现的算法与理论,进行了几种方案的比较,重点介绍了“莱斯变换法”实现免混频数字正交下变频的算法理论,用数字信号处理实现目标速度信息和角度信息的提取方法以及接收系统三通道幅相一致性校准方法。结合实际,对实现数字接收的硬件方案进行了阐述,介绍了以FPGA为主,FPGA和DSP合理分工和配合实现数字接收系统的工程实现方法,讨论了工程实践中的一些关键技术和设计要点。The algorithm and theory of digital receiving technology of PD radar seeker are discussed, and several schemes are proposed and compared. Then the digital signal processing pick-up method of the speed information and angle information of the target, and the three-channel amplitude-phase equalization calibration methods of the receiving system are mentioned. The algorithm and theory of the realiationi of the frequency-mixing-free quadrature down conversion with the Rice transform is described. A hardware scheme to realize digital receiving is proposed. Based on FPGA and DSP technology, the method of the task assignment and the cooperation of FPGA and DSP is introduced ,and the key technology and design gist are also discussed.

关 键 词：中频带通采样 数字信号处理 速度信息 角度信息 FPGA DSP 

分 类 号：TJ765.331[兵器科学与技术—武器系统与运用工程]