中国空间科学技术

中国空间科学技术

• • 上一篇    下一篇

SCPC卫星通信系统中的频谱成形及相位均衡技术

高伟   

  1. 西安空间无线电技术研究所
  • 发布日期:1992-08-25

SPECTRAL SHAPING AND PHASE EQUALIZATION TECHNIQUES FOR SCPC SATELLITE COMMUNICATION SYSTEMS

Gao Wei (Xi'an Institute of Space Radio Technology)   

  • Online:1992-08-25

摘要： 通过对航天系统专用卫星通信网中SCPC(单路单载波)通信地球站的研制,详细论述了频谱成形及相位均衡技术能有效地压缩发送频谱宽度和减小码元间串扰。经进站入网运行和实测表明,该技术具有提高频谱利用率和改善系统误码性能的显著效果。

关键词: 卫星通信, 调制技术, 相位均衡, 设计

Abstract: Based on development of SCPC earth station in the specialsatellite communication network of the aerospace systems,the spectralshaping and phase equalization techniques are described in this paper,which are effective on compressing transmission spectrum and reducingintersymbol—interference (ISI).The measurement and operation show thatthe techniques have the evident advantage to improving the spectral effi-ciency and bit error rate performance of the system.

Key words: Satellite communication, Modulation technique, Phase equalization, Design