|
|
|
| On direct digital generation of IF pulse compression signals |
| Si Qiang; Xiang Jingcheng |
| College. of E. E., Univ. of Electron. Sci. and Tech. of China Chengdu 610054 China |
|
|
|
|
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.
|
|
Received: 12 January 2000
|
|
|
|
|
|
|
|
|
2002, Vol. 24 
