一种半全息圆柱扫描成像新方法  

A New Method of Semi-holographic Cylindrical Scanning Imaging

作　　者：张继康 张继龙 姚广峰 王栋 ZHANG Ji-kang;ZHANG Ji-long;YAO Guang-feng;WANG Dong(Suzhou Weimo Electronic Information Technology Co.,Ltd.,Suzhou 215312,China;Unit 93221 of the PLA,Beijing 100085,China;Beijing Metstar Radar Co.,Ltd.,Beijing 100094,China)

机构地区：[1]苏州威陌电子信息科技有限公司,苏州215312 [2]中国人民解放军93221部队,北京100085 [3]北京敏视达雷达有限公司,北京100094

出　　处：《微波学报》2023年第6期55-60,共6页Journal of Microwaves

摘　　要：在采用一维线阵进行圆柱扫描成像时,若一维线阵为一发多收或多发多收,并且所有线阵单元同时接收信号,则此时合成的二维柱面阵列为半全息阵列,即沿一维线阵方向为常规阵列或半主动阵列,沿柱面扫描方向为全息阵列,对于这种半全息阵列,现有的常规计算成像方法失效。虚拟透镜成像技术是一种全新的成像技术,可兼容不同的技术体制,并且适用于远、中、近以及超近距离目标的成像。为了解决上述半全息圆柱扫描成像难题,针对半全息阵列的特点,深入研究了虚拟透镜成像技术,提出了一种半全息圆柱扫描快速成像算法,最后进行了成像仿真,仿真结果验证了新算法的有效性。When one-dimensional linear array is used for planar scanning imaging,if the unit of one-dimensional line-ar array receives signals at the same time,the synthesized two-dimensional cylindrical array is a semi-holographic array.For this semi-holographic array,existing conventional imaging methods is invalid.Virtual lens imaging is a new imaging technol-ogy.It is compatible with different technology systems and can be applied to imaging targets at far,medium,near and ultra-near range.In order to solve the imaging problems of semi-holographic cylindrical array,the virtual lens imaging technology is studied based on the characteristics of semi-holographic array.A fast imaging algorithm for semi-holographic cylindrical ar-rays is proposed.Finally,the imaging simulation results verify the effectiveness of the new algorithm.

关 键 词：虚拟透镜成像 微波成像 微波全息成像 转台成像 圆柱扫描成像 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]