| 基于带通采样定理的高效ADC系统研究 |
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| 引用本文： | 李辉,毕大平,程犇.基于带通采样定理的高效ADC系统研究[J].舰船电子工程,2011,31(3):98-100. |
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| 作者姓名： | 李辉 毕大平 程犇 |
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| 作者单位： | 1. 电子工程学院安徽省电子制约技术重点实验室,合肥,230037
2. 电子工程学院安徽省电子制约技术重点实验室,合肥,230037;电子工程学院,合肥,230037 |
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| 摘 要： | 目前对射频信号进行A/D转换存在很大难度,主要采用多片A/D器件并行使用,实现高速数据采集。带通采样技术含有同时调制信号和降低信号速率两种作用,鉴于此前端设计一种基于带通采样定理的SHA抽取器,后端加入表决系统,提出一种基于带通采样定理的高效ADC系统,经理论分析该结构切实可行,对于降低数据采样率和提高数据转换效率有一定的借鉴意义。
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| 关 键 词： | 带通采样 QMF ADC系统 |
Research on High Efficiency of ADC System Based on Band-pass Sampling Theorem |
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| Li Hui,Bi Daping,Cheng Ben.Research on High Efficiency of ADC System Based on Band-pass Sampling Theorem[J].Ship Electronic Engineering,2011,31(3):98-100. |
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| Authors: | Li Hui Bi Daping Cheng Ben |
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| Institution: | Li Hui1) Bi Daping1),2) Cheng Ben1)(Key Laboratory of Electronic Restriction Anhui Province,Electronic Engineering Institute1),Hefei 230037)(Electronic Engineering Institute2),Hefei 230037) |
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| Abstract: | It is difficult to sample directly radio frequency signal because of lower capability of ADC now.In order to remove it,we use several ADC chip through side by side.Band-pass sampling theorem can modulate signal and also have lower speed of signal.So a kind of SHA model based on band-pass sampling theorem is presented,and add a judgment system,we call this system is based on band-pass sampling theorem of ADC system.The structure and effectiveness are proved.It is useful for lower speed of sampling and improv... |
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| Keywords: | QMF |
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