【作者】 翟来娟； 许小剑；

【Author】 Zhai Layuan and Xu Xiaojian School of Electronic and Information Engineering, BeiHang University 37 XueYuan Road, Beijing, 100083, China

【机构】 北京航空航天大学电子信息工程学院；

【摘要】 在高频区,复杂目标的电磁散射表现为多散射中心相干迭加的结果。本文首先建立SAR／ISAR成像系统的二维sinc模型,并根据该模型提出了一种峰值特征提取算法,利用实测数据的图像处理和目标RCS 外推结果验证了该算法的有效性。更多还原

【Abstract】 In high frequency region, the response of an extended target is well approximated as the sum of responses from individual scattering centers. This paper firstly develops a two-dimensional (2-D) sine model for the point spread function (PSF) of a SAR/ISAR image system, and then proposes a peak feature extraction algorithm based on this model. Using target data measured in an anechoic chamber, the results for image processing and RCS extrapolation demonstrate the usefulness of the current technique.更多还原