Yong Jiang, Shaodong Feng, Zhidong Xie, Gengxin Zhang, Guangxia Li
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引用次数: 1
Abstract
Currently many efforts are undertaken to develop mobile communication networks based on satellites constellation. However, many problems are to be solved before the final operation of such networks. This paper deals with basic design of middle earth orbit (MEO)-based satellite networks without Inter-satellite links in China for global coverage. Firstly, the ICO™ constellation which is proposed by ICO Global Communications Limited and ICO™-like constellation are investigated. The coverage and visibility performance of these two constellations are simulated and discussed. In order to improve the coverage performance of the ICO™-like constellation, a novel Dissymmetrical Middle Earth Orbit with Equatorial-Polar plane (EPD-MEO) constellation is proposed and simulated. Simulation results show that EPD-MEO constellation can perform better on coverage while guaranteeing the visibility compare the previous one.
目前，人们在发展基于卫星星座的移动通信网络方面做了很多努力。然而，在这种网络最终投入使用之前，还有许多问题需要解决。本文研究了中国无星间链路、面向全球覆盖的中地球轨道卫星网络的基本设计。首先，对ICO Global Communications Limited提出的ICO™星座和类ICO™星座进行了研究。对这两个星座的覆盖性能和能见度进行了模拟和讨论。为了提高类ICO星座的覆盖性能，提出了一种新型的赤道极面非对称中地球轨道(EPD-MEO)星座，并进行了仿真。仿真结果表明，EPD-MEO星座在保证可见性的同时具有更好的覆盖性能。
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