A New Method for Ionospheric Clutter Suppression in HFSWR

摘要：

High frequency surface wave radar (HFSWR) is an effective early warning radar, but the detection performance is impacted by the ionospheric clutter seriously. In order to suppress the ionospheric clutter, a segment accumulation algorithm is proposed, based on the time-frequency characteristics of the ionospheric clutter. The time-domain data of radar echo is divided into several segments, and the frequency spectrum was estimated with amplitude and phase estimation (APES) in each subsegment. The amplitudes fluctuate fast and huge contains the most ionospheric clutter. The time-domain ionospheric clutter is reconstructed and subtracted from the original signal. By processing the measured data, it shows that the method can effectively improve the SNCR (signal to noise and clutter ratio) in the detection unit polluted by the ionospheric clutter.

关键词： HFSWR ionospheric clutter time-frequency analysis APES

作者: Shang Shang Zhang Ning Li Yang

作者单位: School of Electronics and Information Engineering Harbin Institute of Technology Harbin, China

会议类型: 国际会议

会议名称: 2011 IEEE CIE International Conference on Radar(2011年IEEE国际雷达会议RADAR 2011)

会议地点: 成都

会议语种:英文

页码: 141-144

在线出版日期: 2011-10-24（万方平台首次上网日期，不代表论文的发表时间）