首都师范大学学报（自然科学版）2024，Vol.45Issue(5)：3-10,8.DOI:10.19789/j.1004-9398.2024.05.001
国际首颗动目标检测专用卫星的设计与在轨验证
Design and on-orbit validation for the first dedicated moving target detection satellite in the world
摘要
Abstract
With the rapid development of satellite technology,the demand on remote sensing applications has shifted from traditional static observation to dynamic monitoring.Current remote sensing satellites supporting moving target detection face challenges,such as the difficulties in extracting slow-moving targets,the limited observation coverage,and the difficulties of transmission and processing of large volumes of data.This paper proposes innovative approaches in camera imaging modes,data processing methods,and hardware architecture.(1)The design of a remote sensing camera with the dual-line array push-broom imaging mode is proposed,which allows for the acquisition of same-spectral dual-strip data with controllable time differences in a single imaging session;this breakthrough overcomes the challenge of observing large-scale moving targets under non-agile satellite conditions and provides a means to obtain"instantaneous change"information in the context of dynamic remote sensing.(2)The supporting onboard intelligent processing unit is developed independently,which is equipped with efficient onboard processing algorithms;through the design of high-performance parallel computing hardware-accelerated architecture,the hardware carrier of real-time remote sensing service in the dynamic remote sensing system is formed.The prototype based on the technology has been successfully launched aboard the MN200Sar-1 optical remote sensing satellite,positioning it as the first dedicated moving target detection satellite in the world.The on-orbit verification results show that the satellite is capable of detecting a wide range of moving targets within its sweeping field of view.It exhibits excellent detection performance for high-speed trains,vehicles,ships and other objects in motion.And the on-board processing unit meets the requirements for on-board processing applications in terms of time efficiency,energy utilization,and processing effectiveness.The related technologies and achievements hold significant theoretical and practical implications for various application domains,including intelligent transportation,disaster prevention and mitigation,and national security.关键词
星上处理/动目标检测/双线阵推扫/硬件架构/在轨验证Key words
on-board processing/moving target detection/dual-line array push-broom/hardware architecture/on-orbit validation分类
天文与地球科学引用本文复制引用
杜鑫,钟若飞,杨灿坤,李清扬,周春平,李小娟,宫辉力..国际首颗动目标检测专用卫星的设计与在轨验证[J].首都师范大学学报（自然科学版）,2024,45(5):3-10,8.基金项目
国家重点研发计划项目(2022YFB3904101) （2022YFB3904101）
国家自然科学基金项目(42071444) （42071444）
北京成像理论与技术高精尖创新中心专项 （）
