遥感卫星SC-FDE数据传输系统的研究  

Research on SC-FDE system of remote sensing satellite data transmission

作　　者：杨丽[1] 陈泓[2] 胡晓曦[1] 

机构地区：[1]中国空间技术研究院西安分院,陕西西安710100 [2]中国空间技术研究院,北京100086

出　　处：《电子设计工程》2013年第20期109-110,共2页Electronic Design Engineering

摘　　要：为了提高系统的传输效率,分析和研究了一种将单载波频域均衡(SC-FDE)技术用于低仰角情况下遥感卫星数据传输的系统方案。在频率选择性衰落严重的情况下,SC-FDE技术的复杂度远小于时域均衡并且具有抗多径干扰性能良好的优点,因此已经得到了广泛的研究。文章给出了低仰角下的遥感轨道卫星信道模型,并着重分析了SCFDE技术应用与此系统的可行性。In order to improve the transmission efficiency of the system, analysis and study on a Single Carrier Frequency Domain Equalization( SC-FDE) technology for the system of remote sensing satellites data transmission in low elevation cases. The complexity of SC-FDE system is far less than the time domain equalization and it has good performance in resisting multi-path effect when the frequency selective fading is serious, so it has been widely researched. The mode of remote sensing satellite channel in low elevation is given in the article, and then analyzes the application of SC-FDE technology in this system.

关 键 词：低轨卫星 莱斯信道 低仰角 SC-FDE系统 数据传输 

分 类 号：TN927[电子电信—通信与信息系统]