雷达科学与技术2012，Vol.10Issue(6)：565-573,579,10.
用于空间转换的巴克ISAR信号形成与图像重构
Barker's ISAR Signal Formation and Image Reconstruction as Spatial Transforms
摘要
Abstract
Inverse synthetic aperture radar(ISAR) concept,based on the Barker's phase code modulated emitted signal and three dimensional geometry of the ISAR scenario is developed.ISAR signal formation is interpreted as an asymmetric spatial transform of a 3-D image function into a two-dimensional(2-D) signal function,while the image reconstruction is considered as an inverse spatial transform of the 2-D signal function into a 2 D image function(reconstructed image).It is proven that the image reconstruction algorithm consists of cross-correlation for range compression,Fourier transform for azimuth compression,interpreted as motion compensation of first order,and higher order phase correction,interpreted as motion compensation of higher order known as an autofocus procedure.Entropy is introduced as an image cost function to evaluate the polynomial coefficient of the phase correction function.To verify the ISAR geometry,model of signal formation and image reconstruction algorithm a numerical experiment is carried out.关键词
巴克ISAR信号/图像重构/ISAR空间转换Key words
Barker's ISAR signal/image reconstruction/ISAR spatial transforms分类
信息技术与安全科学引用本文复制引用
安东迪米托米·拉扎洛夫..用于空间转换的巴克ISAR信号形成与图像重构[J].雷达科学与技术,2012,10(6):565-573,579,10.基金项目
This paper is supported by NATO Science for Peace and Security Programme(SPS) ESP.EAP.CLG 983876,BG051PO 001-3.3.04/13,BG DTK 02-28/2009. （SPS）
