Target Detecting Based on Improved WVD-HT for Radio Frequency Interference to UWB-SAR

摘要：

Ultra-wideband synthetic aperture radar is interfered by ground clutter and artificial jamming.In many cases the target’s scatter signal can be approximated as Linear Frequency Modulated signals.Time-frequency Distribution,such as Winger-Ville distribution,provides a direct and effective analysis method of the time-frequency structures of Linear Frequency Modulated signals.Meanwhile,the cross terms of the Winger-Ville distribution can be smoothed through the smoothed pseudo Winger-Ville distribution.Combine Hough transform the time-frequency concentration is improved and better precision of parameter estimation will be obtained.Target detecting and parameter estimation by the smoothed pseudo Winger-Ville distribution and Hough transform for frequency-modulated jamming are simulated in this paper.The method proved to be efficient for target detecting and parameter estimation of Ultra-wideband synthetic aperture radar.

作者: Chunjian Xie Kai Zhang Kuisheng Feng Chenjiang Guo Jiadong Xu

作者单位: School of Electronics and Information,Northwestern Polytechnical University,Xian 710072 Shaanxi,P.R.China

会议类型: 国际会议

会议名称: 第一届智能网络与智能系统国际会议(ICINIS 2008)(The First International Conference on Intelligent Networks and Intelligent Systems)

会议地点: 武汉

会议语种:英文

在线出版日期: 2008-11-01（万方平台首次上网日期，不代表论文的发表时间）