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AN ADVANCED RESEARCH ENVIRONMENT FOR KA-BAND SATELLITE COMMUNICATIONS

机译：KA波段卫星通信的高级研究环境

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The Institute of Astronautics (IA, Lehrstuhl Raumfahrttechnik / LRT) at Technische Universit?t München has astrong background in inter-satellite communication. The efforts were driven by the need of developing key methodsand hardware for controlling robotic space applications by a user on ground. In this framework, research wasconducted to control robotic applications on Earth via a geostationary relay satellite.Extensive tests showed that high bandwidth is necessary to fulfill the high performance requirements on acommunication link for robotic systems featuring haptic and visual feedback. Thus, a Ka-band ground station and aKa-band satellite mock-up system was set up at the LRT. The antenna system was developed with a specialmeasurement configuration to meet the requirement of a high flexibility degree for measurements. To guarantee highprecision measurements, the ground station is equipped with an inject-pilot system in the reception. The highprecision coupler and power meter in the transmission path allow a well adjustable uplink power to the satellite. Theperformance of the ground station was verified with an extended ESVA (Earth Station Verification & Acceptance)test together with EUTELSAT and ESA (European Space Agency). The whole antenna system was calibrated with ahigh precision Standard-Gain-Horn to increase the measurement performance.This paper describes ongoing activities at the LRT, focusing the Ka-band ground station and the Ka-band satellitemock-up system. It further outlines the possibilities that arise from using a Ka-band environment (ground station andmock-up) that can be easily accessed and used by research partners, since the ground station and the mock-up are notdedicated to one satellite operator only.
机译：慕尼黑工业大学的航空研究所（IA，Lehrstuhl Raumfahrttechnik / LRT） 在星际通信方面具有深厚的背景。努力是由于需要开发关键方法 以及用于由地面用户控制机器人太空应用的硬件。在这个框架下，研究是 通过对地静止中继卫星进行控制地球上的机器人应用。 广泛的测试表明，高带宽对于满足笔记本电脑上的高性能要求是必需的。 具有触觉和视觉反馈的机器人系统的通信链接。因此，一个Ka波段地面站和一个 轻铁建立了Ka波段卫星模拟系统。天线系统是专门开发的 测量配置，以满足高度灵活的测量要求。保证高 为了进行精确测量，地面站在接收器中配备了一个喷射飞行员系统。高 传输路径中的精密耦合器和功率计可为卫星提供可调的上行链路功率。这 扩展的ESVA（地球站验证和验收）验证了地面站的性能 与EUTELSAT和ESA（欧洲航天局）一起进行测试。整个天线系统已使用 高精度标准增益角，以提高测量性能。 本文介绍了轻轨系统正在进行的活动，重点是Ka波段地面站和Ka波段卫星 样机系统。它还概述了使用Ka频段环境（地面站和 研究人员可以轻松访问和使用的实体模型，因为地面站和实体模型不是 专供一个卫星运营商使用。

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