电波科学学报2011，Vol.26Issue(4)：796-801,6.
一种快速星载合成孔径雷达波束优化算法
A fast beam optimization algorithm of spaceborne SAR
摘要
Abstract
In this paper,a fast beam optimization algorithm for spaceborne Synthetic Aperture Radar（SAR）is proposed. By using this algorithm, the beam of spaceborne SAR antenna is optimized, and the ambiguity areas are depressed. Firstly, the complex value of the array pattern is obtained by using an inverse Fast Fourier transform（IFFT）. Then compared to the desired pattern, all the values of the pattern exceeding the desired pattern are replaced by the values of the desired pattern. Repeat the above operation until the array pattern satisfies the pattern requirements. Compared with the conventional methods, the proposed algorithm needs no complicated operation. Therefore, it provides significant improvements in terms of computational speed and optimization time. Two examples are presented to demonstrate the high efficiency and practicality of the method.关键词
FFT/阵列天线/波束优化/有源相控阵Key words
FFT array antennas beam optimization designl active phased array分类
信息技术与安全科学引用本文复制引用
石力,孙慧峰,邓云凯,艾加秋,刘凡..一种快速星载合成孔径雷达波束优化算法[J].电波科学学报,2011,26(4):796-801,6.基金项目
863计划项目 （）
