基于数字相关法的多通道DAC同步算法

doi:10.7523/j.issn.2095-6134.2012.2.013

中国科学院大学学报 ›› 2012, Vol. ›› Issue (2): 234-239.DOI: 10.7523/j.issn.2095-6134.2012.2.013

基于数字相关法的多通道DAC同步算法

赵彬广^1,2, 高文军¹, 李坤龙^1,2, 马小兵¹

1. 中国科学院电子学研究所, 北京 100190;
2. 中国科学院研究生院, 北京 100049

收稿日期:2011-02-28 修回日期:2011-03-21 发布日期:2012-03-15
通讯作者: 赵彬广
基金资助:
国家重点实验室基金(9140C1902020903)资助

Multi-channel DAC synchronizing algorithm based on digital correlation method

ZHAO Bin-Guang^1,2, GAO Wen-Jun¹, LI Kun-Long^1,2, MA Xiao-Bing¹

1. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
2. Graduate University, Chinese Academy of Sciences, Beijing 100049, China

Received:2011-02-28 Revised:2011-03-21 Published:2012-03-15

摘要/Abstract

摘要：

针对多通道MUXDAC系统的同步问题,采用数字相关法进行反馈时钟鉴相,提出一种适于FPGA的低采样率反馈算法. 对算法原理、实现方法及影响算法精度的各参数进行了分析. 该算法在雷达双通道信号发生器系统中得以应用,证明了其正确性. 算法简单易行,提高了系统可靠性.

关键词: 多通道DAC同步, 数字相关法, 软件无线电

Abstract:

A feedback algorithm based on digital correlation method is investigated, and it works at relatively low sampling frequency to solve multi-channel MUXDAC synchronizing problem. The principle and implementation method of the algorithm are analyzed. The influences of the parameters on accuracy are also analyzed. The algorithm has been used in a multi-channel radar AWG system, and it has been vesified that the algorithm can be implemented easily and improves the reliability of the whole system.

Key words: multi-channel DAC synchronization, digital correlation method, software radio

中图分类号:

TN792

赵彬广, 高文军, 李坤龙, 马小兵. 基于数字相关法的多通道DAC同步算法[J]. 中国科学院大学学报, 2012, (2): 234-239.

ZHAO Bin-Guang, GAO Wen-Jun, LI Kun-Long, MA Xiao-Bing. Multi-channel DAC synchronizing algorithm based on digital correlation method[J]. , 2012, (2): 234-239.

基于数字相关法的多通道DAC同步算法

Multi-channel DAC synchronizing algorithm based on digital correlation method

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