空间电子技术2025，Vol.22Issue(1)：87-93,7.DOI:10.3969/j.issn.1674-7135.2025.01.010
基于滤波逆投影的小行星二维层析成像算法
Two-dimensional imaging algorithm of asteroid tomography based on filtered back-projection projection
摘要
Abstract
This paper presents a two-dimensional tomography algorithm based on filtered back-projection projection of asteroids,which has been designed to meet the demand of deep space satellites for internal exploration of asteroids.In this algorithm,the scattering data of the simulation model is initially provided by FEKO software.According to the principle of kinematic relativity,a target echo signal model is established in the process of the asteroid's orbit by the observer,based on the target echo signal model established in the rotary station.This is followed by the combination of the filtered back-projection projection algorithm with the tomographic imaging process,which enables the internal structure of the target to be visualized.The imaging results,when combined with the scattering data collected by the antenna during the orbit of the target,serve to verify the feasibility of the algorithm for the detection of the interior of an asteroid.This method represents a simulation of an observer orbiting an asteroid,presenting a graphical display of its interior.This technical foundation is essential for exploring the interior resources of an asteroid.关键词
小行星/滤波逆投影算法/转台成像/二维成像Key words
asteroid/filtered back-projection algorithm/turntable imaging/two-dimensional imaging分类
航空航天引用本文复制引用
王闻岩,左炎春,吕冰,黄润,罗熹,刘伟..基于滤波逆投影的小行星二维层析成像算法[J].空间电子技术,2025,22(1):87-93,7.基金项目
重点实验室基金项目(编号:HTKJ2021KL504004) （编号:HTKJ2021KL504004）
空基信息感知与融合全国重点实验室和航空科学基金联合资助(编号:20220001081007) （编号:20220001081007）
国家自然科学基金项目(编号:62301402) （编号:62301402）
