【摘要】 提出了一种中频脉冲压缩信号数字化产生方法和硬件实现方案 ,理论上分析了一些关键性的问题 ,并在此基础上完成了一套雷达中频多波形产生器 ,可产生多种基于 3 0 MHz中频、 5 MHz带宽 ,不同时宽的线性调频、非线性调频或相位编码组合而成的雷达发射信号。测试表明其谐波与杂散均优于 5 5 d B,符合工程应用要求更多还原

【Abstract】 In this paper, a method of intermediate frequency pulse compression signals generation is proposed, and the hardware architecture is also presented Some key issues are analyzed theoretically Based on these, a set of generation system is implemented The system is applicable to generate various radar launched signals, which are combined by different timewidth of LFM,NLFM or PHC signals based on 30 MHz intermediate frequency and 5 MHz bandwidth The measure results of SFDR and noise are all below 55 dB, which show that the performances of the system can meet the needs of practical engineering application更多还原