| 数字通信接收机中载波同步的一种算法 |
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| 引用本文： | 熊卓列,陈爱萍.数字通信接收机中载波同步的一种算法[J].湖南工程学院学报(自然科学版),2006,16(1):23-26. |
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| 作者姓名： | 熊卓列 陈爱萍 |
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| 作者单位： | 湖南工程学院,电气与信息工程系,湖南,湘潭,411101 |
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| 摘 要： | 提出数字通信接收机中,由2DPSK调制信号还原基带信号,解决好收发载波同步的一种算法.对中频信号(2DPSK)直接采样后,在DSP(数字信号处理器)中用软件完成正交数字下变频,并从产生的信号中估计出收发载波的频差,并经卡尔曼滤波后再结合数字锁相环可还原基带信号,较好地解决载波同步问题,达到载频捕获范围宽、同步跟踪速度快、环路噪声小的特点.
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| 关 键 词： | 数字通信 接收机 载波同步 数字锁相环 算法 |
| 文章编号： | 1671-119X(2006)01-0023-04 |
| 收稿时间： | 06 14 2005 12:00AM |
| 修稿时间： | 2005年6月14日 |
Algorithms of Carrier Synchronization in Digital Communication Receiver |
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| XIONG Zhuo-lie,CHEN AI-ping.Algorithms of Carrier Synchronization in Digital Communication Receiver[J].Journal of Hunan Institute of Engineering(Natural Science Edition),2006,16(1):23-26. |
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| Authors: | XIONG Zhuo-lie CHEN AI-ping |
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| Affiliation: | Dept. of Elect. and Information Eng., Hunan Institute of Engineering, Xiangtan 411101 ,China |
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| Abstract: | In this paper,base-band signal is returned by 2DPSK modulation signal.The algorithms of receiving and sending carrier frequency synchronization in digital communication receiver are suggested.The sampled mid-frequency signal(2DPSK) done with is Pseudo-orthogonal digital downconversion in DSP,and frequency difference of receiving and sending carrier by occurred signal.Though Kalman filter and digital phase-locked loop,base-band signal can be returned,can better solve carrier synchronization problem with the features of wide capture carrier range,fast synchronization track and little loop noise. |
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| Keywords: | digital communication receiver carrier synchronization digital phase-locked loop algorithm |
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