Photon-Counting for deep space optical copmmunications

Motivated by the need for higher data volume return from NASA’s future planetary missions, the deep space optical communications (DSOC) technology demonstration (TD) was initiated. The DSOC project integrated a flight laser transceiver to the Psyche Mission spacecraft which launched on Oct. 13, 2023. Ground transmitting and receiving stations implemented by instrumenting existing assets, make more or less weekly optical links with the receding spacecraft. Compared to past and ongoing free-space optical communication (FSOC) TD’s, the key difference for DSOC, is the huge increase in link distance. Photon-counting at both ends of the link were mandated to overcome the link difficulty, defined as data-rate times link-distance squared. In this paper a summary of the photon-counting experience gained so far will be described.为满足美国国家航空航天局（NASA）未来行星探测任务对更高数据回传量的需求，深空光通信（Deep Space Optical Communications，以下简称DSOC）技术演示（Technology Demonstration，以下简称TD）项目正式启动。该项目将飞行激光收发器集成至2023年10月13日发射的灵神星（Psyche）任务航天器上。地面收发站通过改造现有设施搭建而成，可与渐行渐远的航天器约每周建立一次光通信链路。与过往及当前的自由空间光通信（Free-Space Optical Communication，以下简称FSOC）技术演示项目相比，DSOC的核心差异在于通信链路距离的大幅跃升。为克服链路难题（该难题被定义为数据速率与链路距离平方的乘积），链路两端均需采用光子计数技术。本文将对迄今积累的光子计数技术应用经验进行总结与阐述。

搜集汇总

背景与挑战

背景概述

该数据集总结了NASA深空光通信（DSOC）技术演示中光子计数技术的应用经验，旨在解决远距离链路传输难题以提高行星任务数据返回量。数据集包含一份会议论文PDF文件，记录了DSOC项目在Psyche任务中的实际光学链路操作和性能分析。