Design of A High-throughput Satellite Coverage Solution Based on Population Density Distribution

Digital Communication World - - 产业 观察 Industry Observation -

Zhao Yang1, Wang Hailong1,2, Huang Kaibo1, Bai Jing1

(1.The 29th research institute of China Electronics Technology Group

Corporation, Chengdu, 610000; 2.University of Electronic Science and technology of China School of Electronic Science and Engineering, Chengdu, 610054;)

Abstract: A multi-beam satellite coverage solution with hybrid beams is proposed in the paper, based upon the development trend of high-throughput satellites and regional population density distribution.

Keywords: High throughput; Population density; Hybrid beams; Satellite coverage

1 引言

1.1 高通量卫星

高通量通信卫星,就是在使用相同频率资源的条件下,通信容量比常规通信卫星高数倍甚至数十倍的通信卫星。其主要特点是采用了频率复用、多点波束等先进技术,可以同时为更多的用户提供服

务[1]。

常规卫星采用单波束覆盖某一区域,而高通量卫星采用多点波束对区域或全球进行覆盖。以中国国土为例,单波束和多点波束对某一区域的覆盖方

式对比如图1所示。

由于高通量采用多点波束,同一频率可以在不同的区域进行重复使用,这样可以充分利用频率资源。频率复用意味着多次使用相同的频率,不需要

提高带宽即可提高整个网络的通信容量[2]。 项目基金:四川省军民融合产业发展专项资金项目zyf-2018-004。

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