Abstract:In this paper, a method of direct digital generation of intermediate frequency(IF) pulse compression signals is proposed, and the hardware architecture is also presented. Some key issues are analyzed quantitatively. Based on these, a generation system is implemented, which is applicable to generate six kinds of LFM, NLFM waveforms. The designed IF reaches 15MHz and bandwidth reaches 1MHz with timewidth equal to or less than 300μs. The measuring results of SFDR and noise are all below-68dB, which show that the performances of the system can meet the needs of practical engineering application.
姒强; 向敬成. 中频脉中压缩信号数字化直接产生技术研究[J]. 电子与信息学报, 2002, 24(1): 19-24 .
Si Qiang; Xiang Jingcheng . On direct digital generation of IF pulse compression signals. , 2002, 24(1): 19-24 .