Enhance uniform observation ability of remote sensing constellation using ground track configuration allocation

IF 5 1区工程技术 Q1 ENGINEERING, AEROSPACE

Aerospace Science and Technology Pub Date : 2025-05-20 DOI:10.1016/j.ast.2025.110344

Jihe Wang , Tianjie Liu , Chengxi Zhang , Jinxiu Zhang

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引用次数: 0

Abstract

Conventional ground track-based constellation designs focus on the distribution of ascending and descending nodes, addressing only the relative spacing of ground tracks. This study for the first time introduces an analytic constellation design framework that allocates ground track configurations by examining the distribution of independent intersection points, pioneering a comprehensive analysis of ground track configurations and their impact on coverage performance. This solution enables the fulfillment of mission objectives with a minimal number of satellites. Furthermore, by optimizing the initial positions of satellites within designated ground track configurations, this approach ensures greater uniformity in average revisit time (ART) and maximum revisit time (MRT). The proposed method significantly reduces the design search space and enhances efficiency. Simulation results demonstrate a 31% reduction in satellite count and substantial decreases in the standard deviations of ART and MRT by 52.99% and 66.53%, respectively, compared to genetic algorithm-based optimization methods.

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利用地迹配置配置增强遥感星座均匀观测能力

传统的基于地面轨道的星座设计主要关注上升和下降节点的分布，只解决地面轨道的相对间距问题。本研究首次引入了一种分析星座设计框架，通过检查独立交点的分布来分配地面轨道配置，开创了对地面轨道配置及其对覆盖性能影响的全面分析。这种解决方案可以用最少数量的卫星实现任务目标。此外，通过在指定的地面轨道配置中优化卫星的初始位置，该方法确保了平均重访时间（ART）和最大重访时间（MRT）的更大均匀性。该方法大大减小了设计搜索空间，提高了设计效率。仿真结果表明，与基于遗传算法的优化方法相比，ART和MRT的卫星数量减少了31%，标准差分别大幅降低了52.99%和66.53%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aerospace Science and Technology 工程技术-工程：宇航

CiteScore

10.30

自引率

28.60%

发文量

654

审稿时长

54 days

期刊介绍： Aerospace Science and Technology publishes articles of outstanding scientific quality. Each article is reviewed by two referees. The journal welcomes papers from a wide range of countries. This journal publishes original papers, review articles and short communications related to all fields of aerospace research, fundamental and applied, potential applications of which are clearly related to: • The design and the manufacture of aircraft, helicopters, missiles, launchers and satellites • The control of their environment • The study of various systems they are involved in, as supports or as targets. Authors are invited to submit papers on new advances in the following topics to aerospace applications: • Fluid dynamics • Energetics and propulsion • Materials and structures • Flight mechanics • Navigation, guidance and control • Acoustics • Optics • Electromagnetism and radar • Signal and image processing • Information processing • Data fusion • Decision aid • Human behaviour • Robotics and intelligent systems • Complex system engineering. Etc.