Quantitative analysis of segmented satellite network architectures: A maritime surveillance case study

IF 4.4 2区计算机科学 Q1 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE

Computer Networks Pub Date : 2024-10-28 DOI:10.1016/j.comnet.2024.110874

Juan A. Fraire , Santiago Henn , Gregory Stock , Robin Ohs , Holger Hermanns , Felix Walter , Lynn Van Broock , Gabriel Ruffini , Federico Machado , Pablo Serratti , Jose Relloso

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Abstract

This paper presents an in-depth trade-off analysis of a Swarm Satellite Constellation (SSC) Mission for Earth observation that leverages Segmented Architecture (SA), a concept designed by the Argentinian Space Agency (CONAE) within the New Space philosophy. This architecture consists of a scenario featuring a networked constellation of small, cooperative satellites to enhance mission flexibility, reliability, coverage, and cost-effectiveness. Despite its promising prospects, SA features challenges in its mission design and definition phases due to the complex interplay between distributed space systems, technological innovation, and geographical landscapes. Our study analyzes an innovative quantitative analysis framework integrated with Ansys’ Systems Toolkit (STK). The resulting software tool models critical components, including ground and space segments, orbital dynamics, coverage, onboard processing, and communication links. We focus on a hypothetical SARE mission to detect illicit maritime activity near Argentina’s Exclusive Economic Zone (EEZ). This case study constitutes an archetypal mission elucidating the architecture’s benefits and complexities, addressing swarm coverage, contact dynamics, and data handling strategies. Results contribute to discussions on the practical trade-off in current and future Segmented Satellite Architectures with multiple mission objectives.

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分段卫星网络架构的定量分析：海上监视案例研究

本文对利用分段式结构（SA）进行地球观测的蜂群卫星星座（SSC）任务进行了深入的权衡分析，分段式结构是阿根廷航天局（CONAE）根据新空间理念设计的概念。该架构包括一个由小型合作卫星组成的网络星座方案，以提高任务的灵活性、可靠性、覆盖范围和成本效益。尽管前景广阔，但由于分布式空间系统、技术创新和地理景观之间复杂的相互作用，SA 在任务设计和定义阶段面临着挑战。我们的研究分析了与 Ansys 系统工具包（STK）集成的创新定量分析框架。由此产生的软件工具对关键组件进行建模，包括地面和空间段、轨道动力学、覆盖范围、机载处理和通信链路。我们将重点放在假定的 SARE 任务上，以探测阿根廷专属经济区（EEZ）附近的非法海上活动。该案例研究构成了一个典型任务，阐明了该架构的优势和复杂性，涉及蜂群覆盖、接触动力学和数据处理策略。研究结果有助于讨论当前和未来具有多重任务目标的分段式卫星架构的实际权衡问题。

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

Computer Networks 工程技术-电信学

CiteScore

10.80

自引率

3.60%

发文量

434

审稿时长

8.6 months

期刊介绍： Computer Networks is an international, archival journal providing a publication vehicle for complete coverage of all topics of interest to those involved in the computer communications networking area. The audience includes researchers, managers and operators of networks as well as designers and implementors. The Editorial Board will consider any material for publication that is of interest to those groups.