波谱学杂志 ›› 2007, Vol. 24 ›› Issue (1): 27-33.

• 研究论文 • 上一篇    下一篇

用于低场磁共振成像的直接射频采样数字接收机

任洁静; 徐勤; 李鲠颖*   

  1. (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)
  • 收稿日期:2006-04-17 修回日期:2006-06-09 出版日期:2007-03-05 发布日期:2009-12-05
  • 通讯作者: 李鲠颖

A Digital Receiver Based on Direct RF Sampling for Low-field MRI Scanner

REN Jie-jing; XU Qin; LI Geng-ying*   

  1. (Shanghai Key Laboratory of Functional Magnetic Resonance Imaging (East China Normal University), Department of Physics, East China Normal University, Shanghai 200062, China)
  • Received:2006-04-17 Revised:2006-06-09 Online:2007-03-05 Published:2009-12-05
  • Contact: Li Geng-ying

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.

关键词: 谱仪, 磁共振成像, 数字接收机, 直接射频采样

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.

Key words: MRI, NMR spectrometer, digital receiver, direct RF sampling

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