ELROI：卫星牌照
ELROI: A License Plate For Your Satellite
摘要：
空间物体识别对于航天器的运行、空间交通控制和空间态势感知至关重要，但身份的初始确定、维护和恢复都是困难、昂贵和容易出错的，特别是对于像立方体卫星这样的小物体。在发射前将具有唯一识别号码的信标或牌照附在空间物体上将大大简化任务，但无线电信标耗电量大，可能造成干扰。本文介绍了一种新的概念，卫星牌照，极低资源的光学标识符或ELROI。ELROI是一个毫瓦级的自供电自主光学信标，可安装在任何空间物体上，向地面站发送持久的识别信号。适用于低地球轨道立方体卫星或其他小型空间物体的系统可以装在一个邮票大小、几毫米厚的包裹中，并且不需要来自主物体的电力、数据或控制。该概念已通过地面测试验证，第一个飞行测试单元计划于2018年发射。低地球轨道卫星的唯一识别号可以在低成本地面站的一次轨道飞行中明确确定。
英文摘要：
Space object identification is vital for operating spacecraft, space traffic control, and space situational awareness, but initial determination, maintenance, and recovery of identity are all difficult, expensive, and error-prone, especially for small objects like CubeSats. Attaching a beacon or license plate with a unique identification number to a space object before launch would greatly simplify the task, but radio beacons are power-hungry and can cause interference. This paper describes a new concept for a satellite license plate, the Extremely Low Resource Optical Identifier or ELROI. ELROI is a milliwatt-scale self-powered autonomous optical beacon that can be attached to any space object to transmit a persistent identification signal to ground stations. A system appropriate for a LEO CubeSat or other small space object can fit in a package with the area of a postage stamp and a few millimeters thick, and requires no power, data, or control from the host object. The concept has been validated with ground tests, and the first flight test unit is scheduled for launch in 2018. The unique identification number of a LEO satellite can be determined unambiguously in a single orbital pass over a low-cost ground station.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
