On the Computation of Cell Propagation Delays in GEO Multi-beam Satellite Communications System

摘要：

In order to overcome delay-sensitive shortcoming of satellite communications system based on Time Division Duplex mode, a scheme of acquiring propagation delay of any place within a spot beam is proposed. It is accurately calculated by space geometric model according to the satellite position ranging results by three calibration stations. Based on actual system parameters in China, the influence on radio frame design and synchronization problem by using midpoint propagation delay as synchronization reference time instead of average propagation delay is analyzed. The result shows that this approximation can not only reduce the computational complexity, but also ensure the adaptability of TD-SCDMA radio frame structure in GEO satellite communications system.

关键词： Multi-beam satellite communications system geosynchronous satellite average propagation delay Time Division Duplex

作者: Xianghui Hu XiLuan Shubo Ren Jianjun Wu

作者单位: China Electronic System Engineering Company Beijing, China Satellite and Wireless Communication Lab, EECS, Peking University Beijing. China

会议类型: 国际会议

会议名称: 2011 3rd International Conference on Computer and Network Technology(ICCNT 2011)(2011第三届IEEE计算机与网络技术国际会议)

会议地点: 太原

会议语种:英文

页码: 251-254

在线出版日期: 2011-02-26（万方平台首次上网日期，不代表论文的发表时间）