A Novel Two-Dimensional Frequency Spectrum for Bistatic SAR Processing
The frequency spectrum expression plays a key role in bistatic SAR image formation. However, due to the existence of double-square-roots in the bistatic range equation, it is difficult to obtain an analytical two-dimensional spectrum. This paper derives a novel spectrum expression for bistatic SAR processing. Based on the appropriate approximation, the original range equation with double-square-roots form can be approximated as the sum of a linear function and a single square-root. Thus the analytical stationary point and spectrum expression can be calculated according the principle of stationary phase. Finally, numerical simulations are performed to validate the proposed frequency spectrum.
Chunyang Dai Xiaoling Zhang
School of Electronic Engineering University of Electronic Science and Technology of China Chengdu, China
国际会议
2011 IEEE CIE International Conference on Radar(2011年IEEE国际雷达会议RADAR 2011)
成都
英文
1551-1553
2011-10-24（万方平台首次上网日期，不代表论文的发表时间）