Gaussian-Sinc脉冲的研究与计算机模拟

Gaussian-Sinc脉冲的研究与计算机模拟

许峰¹, 张家秀¹, 黄永仁²

1. 安徽理工大学数理系，淮南 232001; 2. 教育部光谱学与波谱学重点实验室，华东师范大学物理系, 上海 200062

收稿日期:2003-09-15 修回日期:1900-01-01 出版日期:2004-04-26 发布日期:2004-04-26
通讯作者: 许峰

Study and computer simulation on Gaussian-Sinc pulse

XU Feng¹, ZHANG Jia-xiu¹, HUANG Yong-ren²

1. Department of Mathematics and Physics, Anhui University of Science and Technology, Huainan 232001, China 2.Key Laboratory for Optical and Magnetic Resonance Spectroscopy, Department of Physics,East China Normal University, Shanghai 200062, China

Received:2003-09-15 Revised:1900-01-01 Online:2004-04-26 Published:2004-04-26
Contact: XU Feng

摘要/Abstract

摘要： 根据Fourier变换原理提出Gaussian-Sinc型选择性脉冲，应用Bloch方程对其频谱进行了计算机模拟. 根据模拟结果，研究了脉冲中的参数对频谱选择性、边瓣和位相的影响，结合特形脉冲的优化设计方法分析讨论了Gaussian-Sinc脉冲的优点和局限性，得出一系列的相关结论. 通过实验观察了Gaussian-Sinc脉冲的选择性与边瓣，其结果与计算机模拟结果基本吻合.

关键词: 核磁共振, Gaussian-Sinc脉冲, Fourier变换, Bloch方程, 边瓣抑制

Abstract: Gaussian-Sinc pulse is presented according to the Fourier transformation. Its frequency domain profiles were calculated by means of th e analytical solutions of Bloch equations. The effects of parameter in Gaussian-Sinc pulse on the selective, side band and phase were studied. The advantages and defects of Gaussian-Sinc pulse are discussed and some valuable conclusions are gained. The corresponding experimental results coincide well with the above conclusions.

Key words: NMR, Gaussian-Sinc pulse, Fourier transformation, Bloc h equations, suppression of side band

中图分类号:

O482.53+2

许峰, 张家秀, 黄永仁. Gaussian-Sinc脉冲的研究与计算机模拟[J]. J4, 2004, 42(02): 246-250.

XU Feng, ZHANG Jia-xiu, HUANG Yong-ren. Study and computer simulation on Gaussian-Sinc pulse[J]. J4, 2004, 42(02): 246-250.

[1]	刁庶, 周伟, 罗凯. 基于协同滤波的尖峰噪声抑制方法[J]. 吉林大学学报(理学版), 2020, 58(5): 1202-1206.
[2]	郭昕刚, 梁锦明, 张培栋, 王帅, 宫鸿. 基于分数阶变换的彩色图像自适应重构水印算法[J]. 吉林大学学报(理学版), 2019, 57(1): 121-128.
[3]	才华, 陈广秋, 刘广文, 耿振野, 杜兆圣. 基于FPGA架构的可变点FFT处理器设计与实现[J]. 吉林大学学报(理学版), 2018, 56(1): 151-158.
[4]	魏巍, 李绪文, 周洪玉, 杨瑞杰, 时晓磊, 单晶, 孟磊, 金永日. 3种乌头原碱的NMR[J]. J4, 2010, 48(1): 127-132.
[5]	徐志炳, 路海滨, 梁涌涛, 梁铁, 王恩思,. 2-乙酰氨基-2-［2-(4-正辛基苯基)乙基］丙二酸二乙酯的环合反应[J]. J4, 2008, 46(02): 351-354.
[6]	孙雪楠, 梁学章. 基于圆域上多项式逼近的图像重建算法[J]. J4, 2004, 42(03): 351-355.
[7]	梅子青, 王海晶, 王丰, 黄宜兵, 朴真三. 电器绝缘油中枝动菌代谢物脂肪酸的分离、纯化及结构鉴定[J]. J4, 2004, 42(01): 116-120.
[8]	郭蔚, 马辉. 正交变换在图像置乱中的应用[J]. J4, 2003, 41(04): 470-473.
[9]	尹建元，李桂英，王恩思,2. 降糖药物那格列奈的核磁共振谱解析[J]. J4, 2003, 41(01): 120-122.
[10]	尹建元,王恩思. 口服降糖药曲格列酮的核磁共振谱学表征[J]. J4, 2002, 40(04): 423-425.
[11]	许峰，刘玉林, 黄永仁. DANTE 脉冲序列的改进[J]. J4, 2002, 40(03): 290-293.
[12]	许峰, 刘玉林, 黄永仁. 质子射频场照射对¹³C自旋晶格弛豫的影响[J]. J4, 2002, 40(01): 75-79.