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Overview of the Ground-to-Orbit Lasercom Demonstfation

机译：地对空Lasercom演示概述

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foe Ground-to-Orbit Lasercom Demonstration conducted between the ETS-VI spacecraft and the ground station at JPL's Table Mountain Facility, Wrightwood CA was the first ground-to-space two-way optical communications ex- periment. The demonstration was conducted over a period of seven months and required simultaneous and cooperative op- erations by team members in Tokyo and California. A key objective was to measure the atmospheric attenuation and seeing during the demonstration to evaluate the performance of the optical link. The optical downlink telemetry provided information on the in-orbit performance of ETS-VI's laser communications equipment. Downlinked PN data enabled measurement of bit-error rates. BERs as low as 10~-4 were measured on the uplink and 10~-5 on the downlink. Measured signal powers (corrected for measured atmospheric attenua- bon) agreed with theoretical predictions.
机译：在ETS-VI航天器和JPL的Table Mountain Facility地面站之间进行的地对地激光通信演示，是美国第一个地对空双向光通信实验。演示进行了七个月，需要东京和加利福尼亚的团队成员同时进行协同合作。关键目标是测量演示期间的大气衰减和视线，以评估光链路的性能。下行链路光学遥测技术提供了有关ETS-VI激光通信设备在轨性能的信息。下行PN数据可实现误码率的测量。在上行链路上测量的BER低至10〜-4，在下行链路上测量的BER为10〜-5。测得的信号功率（针对测得的大气衰减进行了校正）与理论预测一致。

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