Effectiveness and Uniqueness Conditions for 2-D MUSIC Algorithm Used in ISAR Imaging

摘要：

This paper discusses the applying of 2-D MUSIC spectral estimation algorithm used in ISAR imaging. The motivation for applying 2-D MUSIC algorithm is to improve resolution and remove sidelobe effects compared to the conventional imaging techniques based on Fourier transform. This paper makes two principal contributions to the 2-D MUSIC algorithm.First,it proved that 2-D MUSIC algorithm using spatial smoothing technique is equivalent to 1D MUSIC algorithm.Second,the effectiveness and uniqueness conditions for 2-D MUSIC algorithm are derived and demonstrated.Simulations illustrate that only when the effectiveness and uniqueness conditions are met can the unique imagery of target using 2-D MUSIC algorithm be obtained;otherwise there will be artifacts.

关键词： ISAR Super-resolution Imaging Algorithm MUSIC Algorithm Spatial Smoothing Technique

作者: Xiang Gu Yunhua Zhang

作者单位: Center for Space Science and Applied Research.CAS,Beijing China 100190

会议类型: 国际会议

会议名称: 2009 2nd Asian-Pacific Conference on Synthetic Aperture Radar(第二届亚太合成孔径雷达会议)

会议地点: 西安

会议语种:英文

页码: 314-318

在线出版日期: 2009-10-26（万方平台首次上网日期，不代表论文的发表时间）