| RCS信道快速载波同步设计 |
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| 引用本文： | 徐迪宇,方 军.RCS信道快速载波同步设计[J].现代电子技术,2014(15):35-37,40. |
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| 作者姓名： | 徐迪宇 方 军 |
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| 作者单位： | 深圳清华大学研究院,广东深圳518057 |
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| 基金项目： | 深圳市无线宽带信号传输与处理技术重点实验室组建项目（CXB201104220016A） |
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| 摘 要： | RCS信道具有用户多、时钟同步要求高和帧长较短等特点,因而要求快速的同步搜索。为了实现RCS信道快速载波同步,在帧结构中专门设计了惟一字,将基于惟一字的载波同步算法和基于Viterbi-Viterbi算法的二次相位估计相结合,设计了易于实现的载波同步方案。经Matlab仿真,证明了方案的性能。所用设计可简单快速实现相位同步,并在某卫星终端应用中取得了明显的效果。
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| 关 键 词： | RCS 惟一字 载波同步 相位估计 |
Design of fast carrier synchronization in RCS channel |
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| XU Di-yu,FANG Jun.Design of fast carrier synchronization in RCS channel[J].Modern Electronic Technique,2014(15):35-37,40. |
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| Authors: | XU Di-yu FANG Jun |
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| Affiliation: | (Shenzhen Research Institute of Tsinghua University, Shenzhen 518057, China) |
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| Abstract: | RCS channel,which has many characteristics,such as multi-user,high clock synchronization requirement and short frame length,needs rapid carrier synchronization. The unique-words（UW）are designed in data frame to realize fast carrier synchronization of RCS channel. A carrier synchronization scheme,which is easy to realize,was designed in combination with carrier synchronization algorithm based on UW and twice-phase-estimation method based on Viterbi-Viterbi algorithm. The perfor-mance of this design was proved by Matlab simulation. The design scheme can realize phase synchronization rapidly,and has been applied successfully to a satellite transceiver. |
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| Keywords: | RCS unique-word carrier synchronization phase estimation |
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