卫星通信的特点

Features of satellite communications

以上为机器翻译结果，快速获取精准的人工翻译结果，建议选择有道人工翻译

1
本文主要叙述激光卫星通信的特点，介绍美国、欧洲和日本的激光卫星通信计划。
This paper outlines the advantages of laser satcom and summarizes the status of relevant projects in USA, Europe and Japan.
2
相对于一般的通信系统而言，低轨卫星通信系统具有信号动态范围大，多普勒频移大且变化速度快，信道起伏剧烈等特点。
LEO satellite communication system has the properties of larger power dynamic range, larger and faster changed doppler frequency shift and rapid fluctuation compared to ordinary communication system.
3
本文阐述陆地移动卫星通信系统(LMSS)及其信道传输的性能和特点。
The paper introduces the land mobile satellite communication system (LMSS) and its channel transmission performance and features.

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