波谱学杂志2017，Vol.34Issue(4)：489-497,9.DOI:10.11938/cjmr20172565
基于NI PXIe-7966R的磁共振成像接收机设计
A Magnetic Resonance Imaging Receiver Design Based on NI PXIe-7966R
摘要
Abstract
A magnetic resonance imaging receiver design based on NI PXIe-7966R is proposed, with which the magnetic resonance signals are sampled directly and down-converted digitally, the raw data are uploaded and the magnetic resonance image are restored. The system-level digital signal processing (DSP) development tools offered by NI LabVIEW field programmable gate array (FPGA) was used for FPGA function modeling, simulation and automatic code generation of hardware description language (HDL). It was very flexible during the digital down conversion (DDC) designing. The sampling rate of this module was 50 Mbps, and the receiver bandwidth could be varied between 100 Hz and 1 MHz. The experimental results showed that the receiver design is a high performance magnetic resonance receiver solution.关键词
磁共振成像(MRI)/数字下变频(DDC)/现场可编程门阵列(FPGA)/数字接收机Key words
MRI/digital down conversion (DDC)/field programmable gate array (FPGA)/digital receiver分类
数理科学引用本文复制引用
胡晋杰,姚俊江,徐俊成,刘军,王孜,蒋瑜..基于NI PXIe-7966R的磁共振成像接收机设计[J].波谱学杂志,2017,34(4):489-497,9.基金项目
国家高技术研究发展计划("863 计划")资助项目(2014AA123401). （"863 计划"）
