设计卫星广播电视地球站的技术要求

Technical Requirement for Designing Satellite TV Broadcast Earth Station

利用C频段通信卫星传送广播、电视节目的卫星地球上行站,在我国正迅速发展。本文依据“卫星广播电视地球站建设标准”和“卫星广播电视地球站设计规范”,论述了地球站天线、调制和发射系统及其性能要求,讨论了站的规模、布局和站址的选择问题。

Up-linking earth stations transmitting radio and TV programs by satellite in C band are developing rapidly in China.According to'Building Standard for TV Broadcast Earth Station'and'Designing Standard for TV Broadcast Earth Station',this article disscusses at length the antenna,mod- ulation and transmission systems of station and their performances,studies the scale、distribution arrangement and position of station.