摘要
提出了一种基于中频采样的数字化波形产生方法及其硬件实现方案 ,对其中的一些关键问题进行了定量分析。在此基础上完成了一套数字波形产生器 ,可产生 3 0余种带宽为 3MHz或 1 0MHz的多种工作模式的线性调频、非线性调频信号。测试结果表明 ,其谐波与杂散均优于 -60dB ,完全达到工程应用的要求。
In this paper, a method of digital waveform generation based on IF sampling and its hardware architecture are presented. Some key issues are analyzed quantitatively. Based on these, a radar waveform generation system is implemented, which is applicable to generate more than 30 kinds of multi mode LFM, NLFM waveforms with 3MHz and 10MHz bandwidth. The measurements of harmonics and spurious signals are all below -60dB.The results show that the performance of the system can meet the need of practical engineering application.
出处
《雷达科学与技术》
2003年第1期46-50,共5页
Radar Science and Technology
