基于OFDM的中低通信频段GEO移动卫星通信系统模型设计与特点分析

Model Design and Features analysis of Low Frequency GEO Satellite Mobile Communication System Based on OFDM

OFDM技术最为4G通信的核心技术通信,在地面移动通信领域迅速发展,近年在卫星通信领域也得到一定发展。本文根据中低频段GEO卫星的通信特点,描述了两种可能的卫星组网应用系统,并对OFDM在卫星应用中的优点与难点进行了分析,对OFDM在今后的实际工程应用进行探讨研究。

As the core part of 4G communication system, OFDM has developed rapidly in the field of terrestrial mobile communication, it has also applied in satellite communication during the past years. This article describes two possible satellite network application systems based on low frequency GEO satellite, and analyzes the advantages and difficulties of OFDM in satellite communication application. It also discusses the OFDM applications in future practical engineering.