Low Complexity Keystone Transform without Interpolation for Dim Moving Target Detection
In conventional Pulsed Doppler (PD) radar, when the coherent accumulation time is long, range migration often occurs, which will degrade the property of radar to detect dim moving targets. Keystone transform is the commonly used method to correct range migration. On the basis of the fast implementation of Keystone transform using Chirp-Z transform (CZT), a modified algorithm combining Keystone transform with coherent integration is proposed in this paper. It has even lower complexity, and can consumedly satisfy the desire of the system’s real-time performance. Computer simulations and real data processing results are given to demonstrate the effectiveness of the proposed method.
PD radar Range migration Keystone transform CZT Real-time performance
Yongbo Zhao Juan Wang Lei Huang Rui Yang
National Lab for Radar Signal Processing, Xidian University, Xian, P.R.China, 710071
国际会议
2011 IEEE CIE International Conference on Radar(2011年IEEE国际雷达会议RADAR 2011)
成都
英文
1745-1748
2011-10-24（万方平台首次上网日期，不代表论文的发表时间）