西安电子科技大学学报（自然科学版）2016，Vol.43Issue(5)：31-35,5.DOI:10.3969/j.issn.1001-2400.2016.05.006
联合的平动和转动相位自聚焦方法
Approach to joint translational and rotational phase auto-focusing
摘要
Abstract
In high‐resolution inverse synthetic aperture radar imaging , the rotational motion of the targets tends to introduce the time‐variant Doppler modulation in the echo , which acts as the range‐variant phase errors in phase history . Moreover , the performance of translational phase error compensation may be dramatically degraded without properly considering the range‐variant phase errors . In this paper , an approach to joint translational and rotational phase auto‐focusing is proposed . In the procedure , the joint phase error correction is modeled as range‐invariant and range‐variant phase errors using a metric of minimum entropy . Then the minimum‐entropy optimization is solved by employing a coordinate descend method based on the quasi‐New ton solver . Finally , experiment based on simulated data is performed to confirm the effectiveness of the proposed algorithm .关键词
逆合成孔径雷达/联合相位误差校正/最小熵/坐标梯度下降法Key words
inverse synthetic aperture radar(ISAR)/joint phase error correction/minimum entropy/coordinate descend method分类
信息技术与安全科学引用本文复制引用
张榆红,邢孟道..联合的平动和转动相位自聚焦方法[J].西安电子科技大学学报（自然科学版）,2016,43(5):31-35,5.基金项目
国家自然科学基金资助项目 （）
