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Key technology trends -- Satellite systems

机译：关键技术趋势-卫星系统

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摘要

This paper is based on material extracted from the WTEC Panel Report Global Satellite Communications Technology and Systems, December 1998. It presents an overview of key technology trends in communications satellites in the last few years. After the introduction which deals with such issues as the transformation of the one-at-a-time approach for building satellites to a production-oriented one, there follows a discus- sion of critical technologies for large geosynchronous earth orbit (GEO) satellites with power systems growing to 20 kW and more. Satellite antenna technology, one of the most crit- ical areas in measuring progress, is next reviewed, including large reflector antennas, phased arrays and optical beam for- mers. This is followed by a discussion of onboard process- ing (analog and digital), progress in satellite traveling wave tubes, solid state power amplifiers and optical satellite tech- nologies including intersatellite links (ISLs). Last some per- tinent satellite bus issues (electric propulsion, thermal control and attitude control) are reviewed. Small and mini-satellites are discussed, but not treated in great detail as much of their technology is derived from that of GEO satellites.
机译：本文基于从1998年12月WTEC小组报告“全球卫星通信技术和系统”中摘录的材料。它概述了过去几年通信卫星的关键技术趋势。在介绍了将一次性建造卫星的方法转换为面向生产的方法的介绍之后，接下来讨论了大型地球同步地球轨道（GEO）卫星的关键技术，包括：电力系统将增长到20 kW甚至更高。卫星天线技术是测量进展中最关键的领域之一，接下来将进行回顾，其中包括大型反射器天线，相控阵和波束形成器。接下来讨论机载处理（模拟和数字），卫星行波管，固态功率放大器和包括星际链路（ISL）在内的光学卫星技术的进展。最后，回顾了一些有关卫星总线的问题（电力推进，热控制和姿态控制）。讨论了小型和小型卫星，但由于它们的许多技术都来自GEO卫星，因此未作详细介绍。

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