电波科学学报2019，Vol.34Issue(1)：91-96,6.DOI:10.13443/j.cjors.2018062001
基于散射中心方位特性的大角度成像数据缩减方法
Wide-angle imaging simplified method based on the scattering center aspect dependences
摘要
Abstract
Scattering centers of actual radar target are different from the ideal scattering centers. They have strong dependences of scattering amplitudes and positions on aspect angles of radar line of sight. Based on the aspect dependences, this paper presents a simple and effective method to reduce the complexity of imaging data. The effective observation angle of each scattering center is analyzed and estimated, and only the scattered fields under the effective observation range are selected for imaging. The image characteristic obtained by less observation angle is the same as the image characteristic obtained by wide-angle imaging. The numerical results show that the ratio of data reduction for the cone-shaped target is over 45％, and 80％ for the airplane. The research results of this paper are of significance to the radar imaging and image characteristic recognition.关键词
散射中心/大角度成像/方位特性/数据缩减Key words
scattering center/wide-angle imaging/aspect dependences/data reduction分类
信息技术与安全科学引用本文复制引用
郭琨毅,王嘉欣,张尊,盛新庆..基于散射中心方位特性的大角度成像数据缩减方法[J].电波科学学报,2019,34(1):91-96,6.基金项目
国家自然科学基金 (61471041, 61671059) （61471041, 61671059）
