气象卫星数据传输的发展

Development of Meteorological Satellite Data Transmission Technology

摘要:

分析了国内外气象卫星数据传输的发展方向：气象卫星数据传输的频率正在从传统单一的L波段向L波段和频率更高的X波段及K波段同时使用发展；数据格式采用空间数据系统咨询委员会标准（CCSDS标准）分包传输，信道编码采用了纠错及抗干扰能力较强的R—S加卷积的级联编码技术；原有的模拟传输体制都改为数字传输。文章归纳了各国极轨和静止气象卫星高低速率数据传输特性。便于广大气象卫星数据接收站及早做好接收新的气象卫星数据的准备。

Abstract:

An analysis was made of the development trend of meteorological satellite data transmission technology. The data transmission frequency of meteorological satellite is changing from L-band only to L-band and X-band plus K-band, adopting higher frequency and CCSDS package transmission. The convolutional multilevel R-S coding technology with advanced error correcting and antijamming capabilities is adopted, changing analog data into digital data. The data transmission characteristics of polar orbiting and goestationary meteorological satellites across the world are summarized to help data-receiving stations to make preparatory for receiving the new meteorological satellite data.