| 基于数字相关法的多通道DAC同步算法 |
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| 作者姓名： | 赵彬广 高文军 李坤龙 马小兵 |
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| 作者单位： | 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 |
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| 基金项目： | 国家重点实验室基金(9140C1902020903)资助 |
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| 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.
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| 关 键 词： | 多通道DAC同步 数字相关法 软件无线电 |
| 收稿时间： | 2011-02-28 |
| 修稿时间： | 2011-03-21 |
Multi-channel DAC synchronizing algorithm based on digital correlation method |
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| Authors: | ZHAO Bin-Guang GAO Wen-Jun LI Kun-Long MA Xiao-Bing |
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| Institution: | 1. Institute of Electronics, Chinese Academy of Sciences, Beijing 100190, China;
2. Graduate University, Chinese Academy of Sciences, Beijing 100049, China |
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| 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. |
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| Keywords: | multi-channel DAC synchronization digital correlation method software radio |
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