对ka波段的争夺:NASA逐步向使用32ghz ka波段进行深空任务迈进

S. Shambayati
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引用次数: 11

摘要

32千兆赫卡波段于1976年首次被考虑用于深空。1979年,32千兆赫卡波段的1千兆赫频谱被分配给深空使用。从那时起,NASA的喷气推进实验室(JPL)一直在开发支持ka波段行星任务所需的技术和架构。本文对JPL的工作进行了综述。本次调查包括对20世纪80年代和90年代早期论文研究的总结,深空网络(DSN)中34米波束波导(BWG)天线的发展,以及在火星观察者、火星全球勘测者、深空1号、卡西尼号和火星侦察轨道飞行器上进行的ka波段实验。本文的重点是32ghz ka波段操作在漫长的历史中所面临的技术和架构挑战。这些挑战包括天气带来的挑战和对航天器更严格的指向要求,以及在通过期间需要使用多种数据速率。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Struggle for Ka-band: NASA's Gradual Move Towards Using 32-GHz Ka-band for Deep Space Missions
32-GHz Ka-band was first considered for deep-space use in 1976. In 1979, 1 GHz of spectrum at 32-GHz Ka-band was allocated for deep space use. Since then NASA's Jet Propulsion Laboratory (JPL) has been developing technologies and architectures necessary to support Ka-band planetary missions. This paper is a survey of JPL's effort. This survey includes a summary of early paper studies done in the 1980's and 1990's, development of the 34-m beam waveguide (BWG) antennas at the deep space network (DSN), and Ka-band experiments on Mars Observer, Mars Global Surveyor, Deep Space 1, Cassini and Mars reconnaissance orbiter spacecraft. The focus of this paper is on the technological and architectural challenges that 32-GHz Ka-band operations have presented throughout this long history. These include challenges presented by the weather and tighter pointing requirements for the spacecraft as well as the need to use multiple data rates during a pass.
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