| 用于低场磁共振成像的直接射频采样数字接收机 |
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| 引用本文： | 任洁静,徐勤,李鲠颖.用于低场磁共振成像的直接射频采样数字接收机[J].波谱学杂志,2007,24(1):27-33. |
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| 作者姓名： | 任洁静 徐勤 李鲠颖 |
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| 作者单位： | (上海市功能磁共振成像重点实验室(华东师范大学)，华东师范大学 物理系，上海 200062) |
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| 摘 要： | 提出一种用于低场磁共振成像谱仪的数字接收机的设计. 它基于直接射频采样技术，本文详细讨论了其设计过程. 实验结果表明，设计的数字接收机具有结构简单、性能优良和实用性较强的特点.
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| 关 键 词： | 谱仪 磁共振成像 数字接收机 直接射频采样 |
| 文章编号： | 1000-4556（2007）01-0027-07 |
| 收稿时间： | 2006-4-17 |
| 修稿时间： | 2006-04-17 |
A Digital Receiver Based on Direct RF Sampling for Low-field MRI Scanner |
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| REN Jie-jing,XU Qin,LI Geng-ying.A Digital Receiver Based on Direct RF Sampling for Low-field MRI Scanner[J].Chinese Journal of Magnetic Resonance,2007,24(1):27-33. |
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| Authors: | REN Jie-jing XU Qin LI Geng-ying |
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| Institution: | （Shanghai Key Laboratory of Functional Magnetic Resonance Imaging (East China Normal University), Department of Physics, East China Normal University, Shanghai 200062, China） |
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| Abstract: | The design and construction of a digital receiver for low-field MRI scanner based on direct RF sampling is described. The main features of this receiver include simple structure, low cost and high performance. The performance of the receiver was demonstrated experimentally. |
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| Keywords: | MRI NMR spectrometer digital receiver direct RF sampling |
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