Multi Reference Plane Projected Confocal 3-D Imaging Algorithm for CSAR

摘要：

Three dimensional (3-D) images can be obtained with SAR moving in a circular trajectory (circular SAR, CSAR) using confocal 3-D imaging algorithm (CIA). However, the image formation is very time-consuming due to the 3-D space variant filtering contained in the algorithm. This paper transformed the 3-D space variant filtering into a 2-D filtering followed by a time shift in the height direction based on the small scale imaging area approximation and presented a projected confocal 3-D imaging algorithm (PCIA) for CSAR. To cancel the restriction on PCIA, a multi reference plane projected confocal 3-D imaging algorithm (MRPPCIA) was presented. It is found that the disadvantages of CIA such as complexity and inefficiency can be conquered by PCIA and the restriction on PCIA can be cancelled by adoption of MRPPCIA.

作者: Wu Xiong-feng Wang Yan-ping Tan Wei-xian Hong Wen Wu Yi-rong

作者单位: National Key Laboratory of Microwave Imaging Technology,Institute of Electronics,Chinese Academy of National Key Laboratory of Microwave Imaging Technology,Institute of Electronics,Chinese Academy of

会议类型: 国际会议

会议名称: 首届亚太合成孔径雷达会议(1st Asian and Pacific Conference on Synthetic Aperture Radar Proceedings)

会议地点: 安徽黄山

会议语种:英文

在线出版日期: 2007-11-05（万方平台首次上网日期，不代表论文的发表时间）