Design Method of Parameters for Pulse Doppler Signal to Nullifying the Interference of Negative Frequency

摘要：

This paper describes how the negative-frequency portion of the pulse doppler(PD) radar signals spectrum extends into positive frequency and causes interference in signal processing. A novel design method of the parameters of pulse doppler signal is presented to nullifying this interference. The key idea of nullifying the interference is to place a null of the negative-frequency portions sidelobes to the place where the interference exists. This method encounters the problem of frequency aliasing in conventional process of PD signal and it no longer works. An improved filtering process is proposed to solve this problem. Some computer simulation results are presented to illustrate the performance of the proposed parameters designing method and the improved filtering process.

关键词： pulse doppler lower sidebands null frequency aliasing frequency domain lowpass filtering

作者: ChaoJie Liang Wei Liu

作者单位: Radar Research Laboratory, Beijing Institute of Technology Beijing 100081, P.R.China

会议类型: 国际会议

会议名称: 2010 IEEE 10th International Conference on Signal Processing(第十届信号处理国际会议 ICSP 2010)

会议地点: 北京

会议语种:英文

页码: 2011-2014

在线出版日期: 2010-08-24（万方平台首次上网日期，不代表论文的发表时间）