CN109644123A - 一种时钟恢复电路中鉴相信号的获取方法以及鉴相器 - Google Patents

一种时钟恢复电路中鉴相信号的获取方法以及鉴相器 Download PDF

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Publication number
CN109644123A
CN109644123A CN201680088573.1A CN201680088573A CN109644123A CN 109644123 A CN109644123 A CN 109644123A CN 201680088573 A CN201680088573 A CN 201680088573A CN 109644123 A CN109644123 A CN 109644123A
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China
Prior art keywords
sequence
sampling
phase
adc
sampling rate
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CN201680088573.1A
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CN109644123B (zh
Inventor
刘玲
万文通
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0079—Receiver details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H04B10/6165—Estimation of the phase of the received optical signal, phase error estimation or phase error correction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/69—Electrical arrangements in the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/02—Speed or phase control by the received code signals, the signals containing no special synchronisation information
    • H04L7/033—Speed or phase control by the received code signals, the signals containing no special synchronisation information using the transitions of the received signal to control the phase of the synchronising-signal-generating means, e.g. using a phase-locked loop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/04—Speed or phase control by synchronisation signals
    • H04L7/041—Speed or phase control by synchronisation signals using special codes as synchronising signal
    • H04L7/042—Detectors therefor, e.g. correlators, state machines

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)

Abstract

本申请实施例提供一种时钟恢复电路中鉴相信号的获取方法以及鉴相器，用于获取正确的鉴相信号。本申请实施例提供的技术方案如下：鉴相器接收模数转换器ADC发送的采样序列，该采样序列由该ADC根据实际采样速率采样该ADC接收到的电信号得到，该电信号携带预先配置的训练序列；该鉴相器将该采样序列和比对序列求相关确定第一位置和第二位置，该第一位置和该第二位置为该训练序列的起始点在该采样序列中的位置，该第一位置与该第二位置在该采样序列的起始点中相差正整数个训练序列周期，该比对序列由该鉴相器根据该训练序列和该ADC的目标采样速率生成；该鉴相器根据该第一位置与该第二位置的差异参数得到鉴相信号。

Description

PCT国内申请，说明书已公开。

Claims (13)

  1. PCT国内申请，权利要求书已公开。
CN201680088573.1A 2016-08-23 2016-08-23 一种时钟恢复电路中鉴相信号的获取方法以及鉴相器 Active CN109644123B (zh)

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PCT/CN2016/096387 WO2018035719A1 (zh) 2016-08-23 2016-08-23 一种时钟恢复电路中鉴相信号的获取方法以及鉴相器

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CN106571818B (zh) * 2016-10-25 2020-04-03 江汉大学 一种腔泡系统性能优化方法及装置
CN111490789B (zh) * 2020-04-15 2023-03-10 中国科学技术大学 基于伪中位数累加的周期性弱信号检测方法及装置
CN111812685B (zh) * 2020-06-22 2023-04-28 泰斗微电子科技有限公司 信号跟踪的定位偏差确定方法及装置
US20240136786A1 (en) * 2022-10-11 2024-04-25 Vector Atomic, Inc. Continuous wave optical two-way time transfer

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Also Published As

Publication number Publication date
EP3496327B1 (en) 2020-10-07
CN109644123B (zh) 2020-09-08
WO2018035719A1 (zh) 2018-03-01
EP3496327A1 (en) 2019-06-12
US10554379B2 (en) 2020-02-04
US20190190692A1 (en) 2019-06-20
EP3496327A4 (en) 2019-08-28

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