基于AD9854的雷达信号源设计与实现

摘要

使用AD9854芯片和FPGA,基于DDS理论设计并实现了多模式多波形雷达信号源.它可模拟LFM、NLFM、单频、相位编码等多种脉冲信号波形,能有效验证脉冲压缩与信号处理单元的工作性能.测试结果表明,该系统能满足设计要求.%A multi-mode and multi-waveform radar signal generator based on DDS was designed with AD9854 and FPGA, which can be used to simulate various pulse signal waveforms such as LFM, NLFM, single frequency and phase code with wide Doppler modulation and long time delay adjustment. The performance of pulse compression and signal processing unit can be verified effectively. The testing result shows that the system can satisfy the requirement.