基于FPGA和DSP的雷达模目信号设计

Design of Radar Simulation Target Signal Based on FPGA and DSP

在雷达信号处理分系统调试时,经常用到模目信号。为了获得实时多波束雷达模目信号,提出一种基于FPGA和DSP的产生方法,利用FPGA产生时序及控制,DSP实时计算出所需要的回波,这样即使在没有阵面数据的情况下,仍然能够调试信号处理部分。该设计模块使用简单方便,只需通过终端键盘输入参数,即可实时产生所期望的回波,非常适用于雷达研制前期和系统联试时查找问题,而且模块做在脉压板上,不需要单独的插件。

When debugging signal processing subsystem of radar,the simulation target signal is often used.In order to obtain real-time multi-beam radar simulation target signal,a method based on FPGA and DSP is proposed.Using FPGA to generate the timing and control,adopting DSP to calculate the required echo in real-time,and the part of signal processing can still be debugged without data from the antenna array.The module can be used simply and conveniently.By inputting the parameters on the terminal keyboard,the desired echo can be generated in real-time.The module is ideal for early development of radar and finding problems in the system′s joint debugging,and the module is designed on the pulse compression board,so additional plug-in in not needed.