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一种基于数字鉴相的频标稳相传输系统A
Authors
江永琛
王锦清
虞林峰
顾晓婕
Publication date
1 January 2013
Publisher
Abstract
本发明涉及一种基于数字鉴相的频标稳相传输系统,该系统包括一信号发送装置以及与该信号发送装置连接的信号接收装置,所述信号发送装置包括第一循环器;分频器;以及第一混频器,其将所述参考频标信号与所述第一循环器输出的所述双边带信号进行混频,并通过一第一低通滤波器向一数字鉴相器输出一调制信号,且所述数字鉴相器还通过一环路低通滤波器与所述压控移相器连接;所述信号接收装置包括第二带通滤波器;第二低通滤波器;以及所述第二混频器将所述参考频标信号与所述分频信号进行混频,并依次通过所述第二循环器和第二带通滤波器向所述信号发送装置输出所述双边带信号。本发明避免了在高频段下由于电缆或光缆温度效应所导致的本振相位漂移
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Shanghai Astronomical Observatory,Chinese Academy of Sciences
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Last time updated on 20/01/2020