雷达中频信号数字化研究及实现

文中结合雷达中频信号数字化课题的具体要求，在讨论数字中频的理论算法和工程实现方案的基础上，设计了基于软件无线电思想的雷达中频数字化硬件平台。针对软件无线电的中频数字化技术进行探讨，深入研究了有关信号采样和数字正交的理论，探讨了实现数字正交采样相干检波的高精度算法，设计了基于软件无线电思想的中频数字化硬件系统，主要包括信号采集电路设计、中频数字化电路设计、逻辑控制电路设计和系统自检电路设计四个部分。此外，本方案还可在无雷达回波数据的情况下进行系统自检，大大提高了系统的可调试性和可靠性。

A Research and Implementation of Radar Intermediate Frequency Signal Digitization

This paper takes into account the specific requirements of the digitized radar IF signal,and constructs a general-purpose radar IF digitization hardware platform based on engineering concept and algorithms and digital IF implementations.This paper analyzes in depth the SWR IF digitization technology,thoroughly explores high-precision algorithms of digital quadrature sampling and coherent detection and designs an IF digitization hardware system based on SWR idea,which mainly includes four aspects of circuit ...