波谱学杂志2017，Vol.34Issue(1)：100-107,8.DOI:10.11938/cjmr20170112
基于异构双核的磁共振接收机的设计
A Heterogeneous Dual-Core Receiver System for Magnetic Resonance Applications
摘要
Abstract
A heterogeneous dual-core receiver system that combines advanced reduced instruction set computing (RISC) machines (ARM) and field programmable gate array (FPGA) is proposed for low-field nuclear magnetic resonance (NMR) applications. This system has advantages, such as high speed analog to digital converter (ADC) acquisition and variable gain control. In this design, the system generator, a system development tool from the Xilinx Company, can implement internal signal processing functions. Experimental results showed that, compared with the traditional receiver, the digital receiver had compact structure, strong reconstruction, high sampling rate and low cost. In addition, variable gain control enabled the digital receiver to achieve a large dynamic range such that the signal-to-noise ratio (SNR) of the reconstructed image could be improved.关键词
低场核磁共振(low-fieldNMR)/异构双核/可变增益/动态范围Key words
low-field NMR/heterogeneous dual-core/variable gain/dynamic range分类
数理科学引用本文复制引用
刘颖,张育文,梁浈,章浩伟..基于异构双核的磁共振接收机的设计[J].波谱学杂志,2017,34(1):100-107,8.基金项目
国家自然科学基金资助项目(61101174),微创创新基金资助项目(YS30808115). （61101174）
