现代防御技术2025，Vol.53Issue(2)：141-148,8.DOI:10.3969/j.issn.1009-086x.2025.02.015
多基站ISAR空间微动目标三维成像方法
Multi-static ISAR Three-Dimensional Imaging of Spatial Micro-motion Target
摘要
Abstract
The research on target's three-dimensional imaging is of significant meaning in feature extraction and recognition.Precession is the typical micromotion for cone-shaped space targets,such as warhead and satellites,which can be used for target feature extraction and identification.Inverse synthetic aperture radar(ISAR)imaging of a precession target,which is a kind of fast spinning target,is faced with migration through range cell when we use traditional imaging algorithms.Target's micro-motion model is built and the theory of micro-motion imaging is analyzed.The relationship among radar's line of sight,direction of target's precession axes and imaging plane is derived.A new three-dimensional reconstruction method of scattering centers is proposed.With the analysis of multi-static ISAR image and the micro-motion model,the association of scattering centers in different station's ISAR image is built.The target's three-dimensional imaging is accomplished.Simulation experiments show the presented method is efficient in micro-motion target's three-dimensional imaging.关键词
雷达图像处理/三维成像/进动/多基站/散射中心关联Key words
radar imaging processing/three-dimensional imaging/precession/multi-static/scattering centers association分类
电子信息工程引用本文复制引用
何兴宇,孙晨阳,方钢..多基站ISAR空间微动目标三维成像方法[J].现代防御技术,2025,53(2):141-148,8.基金项目
中国博士后科学基金(2022M723876) （2022M723876）
陕西省自然科学基础研究计划(2024JC-YBMS-466) （2024JC-YBMS-466）
