发表机构
Hamad Bin Khalifa University; University of Cambridge; Queen Mary University of London; University of Glasgow; Qatar University（哈马德·本·哈利法大学; 剑桥大学; 伦敦大学玛丽女王学院; 格拉斯哥大学; 卡塔尔大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本文提出一种集成数据接收与精跟踪的双功能星间光接收机，通过联合优化中央孔径与离焦，在保证通信功率的同时扩大精跟踪范围。
AI 中文摘要
星间光链路在保持足够接收功率以进行数据通信的同时，需要高精度的精跟踪，然而这些功能在接收机处常常被分开处理。本文提出一种双功能光接收机，在共享的、有意离焦的接收平面上集成数据接收与精跟踪。该架构将中央数据透镜与环形四段跟踪探测器相结合，在数据功率收集与角度估计能力之间形成基本权衡。开发了标量菲涅尔波光学模型，连同非线性二维校准和噪声感知的最坏情况角度精度框架。随后联合优化接收机几何结构，以在最小数据功率约束下最大化保证的精跟踪范围。结果表明，中央孔径与离焦的适当协同设计显著扩大了可用的精跟踪区域，同时维持所需的通信路径功率。所提出的框架为未来光星间终端中集成通信与跟踪架构的分析与设计提供了接收机级基准。
英文摘要
Inter-satellite optical links demand high-precision fine tracking while preserving sufficient received power for data communication, yet these functions are often treated separately at the receiver. This paper proposes a dual-function optical receiver that integrates data reception and fine tracking on a shared, intentionally defocused receiver plane. The architecture combines a central data lens with an annular four-segment tracking detector, creating a fundamental tradeoff between datapower collection and angular-estimation capability. A scalar Fresnel wave-optical model is developed together with nonlinear two-dimensional calibration and a noise-aware worstcase angular-accuracy framework. The receiver geometry is then jointly optimized to maximize the guaranteed fine-tracking range subject to a minimum data-power constraint. Results demonstrate that appropriate co-design of the central aperture and defocus substantially enlarges the usable fine-tracking region while maintaining the required communication-path power. The proposed framework provides a receiver-level benchmark for analyzing and designing integrated communication-and-tracking architectures in future optical inter-satellite terminals.
