In this paper, the use of software radio technology for signal reception in magnetic resonance imaging (MRI) was attempted. A radio frequency direct band-pass sampling method was proposed for signal reception in MRI. For this method, a digital demodulation algorithm was designed and implemented with System Generator, a design and development tool of digital signal processing (DSP) developed by the Xilinx company. At the same time, a digital down conversion (DDC) system was designed and tested to flexibly implement the DDC function. The validity of the proposed receiving method was confirmed by numerical simulations and experiments.
LIU Ying
,
FAN Shu-fei
,
SONG Ming-hui
,
ZHANG Hao-wei
. An MRI Signal Receiving Method Based on Radio Frequency Direct Band-Pass Sampling with System Generator[J]. Chinese Journal of Magnetic Resonance, 2019
, 36(3)
: 278
-287
.
DOI: 10.11938/cjmr20182695
[1] REN J J, XU Q, LI G Y. A digital receiver for nuclear magnetic resonance spectrometer[J]. Chinese J Magn Reson, 2007, 24(1):27-33. 任洁静, 徐勤, 李鲠颖. 一体化核磁共振数字接收机设计[J]. 波谱学杂志, 2007, 24(1):27-33.
[2] HU Z Q, JIN T, ZHANG X M. Receiving MRI echo with software-defined radio approach[J]. Chinese J Magn Reson, 2013, 30(1):29-39. 胡曾千, 金涛, 章新明. 用软件无线电方法实现MRI回波信号接收[J]. 波谱学杂志, 2013, 30(1):29-39.
[3] HUANG Y, XIAO X C, LIN Y S. Subsampling for bandpass signals[J]. Journal of Communication, 1999, 20(S):236-241. 黄勇, 肖先赐, 林云松. 带通信号的欠采样技术[J]. 通信学报, 1999, 20(S):236-241.
[4] LIU L H, ZHAO G Y. The analysi of band-pass sampling in software-defined radio[J]. Radio Engineering, 2007, 37(1):26-29. 刘丽华, 赵光印. 软件无线电中的带采样分析[J]. 无线电工程, 2007, 37(1):26-29.
[5] ZHANG J J, GUO L L. The research of band-pass sampling theory in software-defind radio[J]. Information Technology, 2005, 29(4):97-98. 张俊杰, 郭黎利. 软件无线电中带通采样理论的研究[J]. 信息技术, 2005, 29(4):97-98.
[6] CHENG S Y, WU C H, ZHANG J Y. Uniform undersampling technique of bandpass signal and its en,gineering application in software digital IF receiver[J]. Journal of Circuits and Systems, 2006, 11(3):24-27. 程水英, 武传华, 张剑云. 带通欠采样技术及在数字中频软件接收机中的工程应用[J]. 电路与系统学报, 2006, 11(3):24-27.
[7] 纪志成, 高春能. FPGA数字信号处理设计教程-System Generator入门与提高[M]. 西安:西安电子科技大学出版社, 2008.
[8] DONG H, JIANG Q X, BI D P. DDC technology based on band-pass sampling[J]. Electronic Warfare Technology, 2004, 19(4):36-39. 董晖, 姜秋喜, 毕大平. 基于带通采样的数字下变频技术[J]. 电子信息对抗技术, 2004, 19(4):36-39.
[9] XILINX INC. System generator for DSP user guide[OL]. http://www.xilinx.com/products/design-tools/vivado/integration/sysgen.html. 2012.
[10] 屈有萍. 基于FPGA的数字下变频研究实现[D]. 西安:西安电子科技大学, 2007.
[11] 吴桂琴. 基于System Generator中频数字接收系统的设计与实现[D]. 武汉:武汉理工大学, 2009.
[12] 郑呈斌. 磁共振下变频的FPGA设计与实现[D]. 上海:华东师范大学, 2015.
[13] ZHENG C B, XIE J Y, LI J Q, et al. Digital down-conversion technology based on DSP Builder[J]. Information Technology, 2015, 5:44-47. 郑呈斌, 谢君尧, 李建奇, 等. 基于DSP Builder的数字下变频技术[J]. 信息技术, 2015, 5:44-47.
[14] LIU Y, ZHANG Y W, LIANG Z, et al. A heterogeneous dual-core receiver system for magnetic resonance applications[J]. Chinese J Magn Reson, 2017, 34(1):100-107. 刘颖, 张育文, 梁浈, 等. 基于异构双核的磁共振接收机设计[J]. 波谱学杂志, 2017, 34(1):100-107.
[15] HU J J, YAO J J, XU J C, et al. A magnetic resonance imaging receiver design based on NI PXIe-7966R[J]. Chinese J Magn Reson, 2017, 34(4):489-497. 胡晋杰, 姚俊江, 徐俊成, 等. 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.
[16] WANG H, SUN H Y, TANG W N, et al. An FPGA-based multi-chanel receiver module for magnetic resonance imaging[J]. Chinese J Magn Reson, 2012, 29(2):239-247. 王洪, 孙宏宇, 汤伟男, 等. 基于单片FPGA的多通道磁共振成像接收模块[J]. 波谱学杂志, 2012, 29(2):239-247.
[17] LI R, XIAO L, WANG W M. The design of a digital receiver system for MRI scanners[J]. Chinese J Magn Reson, 2009, 26(3):359-368. 李睿, 肖亮, 王为民. 磁共振成像信号的数字化接收系统设计[J]. 波谱学杂志, 2009, 26(3):359-368.
