Linear Frequency Diversity Array Synthetic Aperture Radar Imaging with Enhanced Fast Back-projection Algorithm
Based on the model of linear frequency diversity array synthetic aperture radar(LFDA-SAR)multiple carrier frequency(MCF)signal,the space-variant range offset characteristic of the echo is derived in detail and an enhanced fast back-projection algorithm is proposed.By splitting the original SAR data matrix into sub data blocks,sub image formation and sub image combination recursively,EFBPA effectively rectify the image defocus,geometric distortion problems in traditional back-projection imaging results and greatly reduces the computational complexity of BPA.All results verify the effectiveness of the proposed algorithm.
frequency diversity array synthetic aperture radar back-projection fast back-projection
Da Ran Can-bin Yin Xin Jia
Equipment Academy Beijing,China
国际会议
重庆
英文
2139-2143
2017-03-25(万方平台首次上网日期,不代表论文的发表时间)