【作者】 谭萍；

【导师】 裘鉴卿；

【作者基本信息】 中国科学院研究生院（武汉物理与数学研究所） ， 无线电物理， 2000， 硕士

【摘要】 数字信号处理(DSP)是构成21世纪科学工程最有力的技术之一。非常成熟的数字信号处理技术已经应用在核磁共振(NMR)领域，并形成了自己的算法、数学理论和特殊的技术。本文将介绍一些数字信号处理技术在NMR中的应用。本文首先介绍了数字信号处理器在核磁共振谱仪升级改造中的应用。我们分别用单板ADSP系统改造了XL-200核磁共振谱仪计算机系统，用LIBRA系统自制了一台200MHz固体、液体两用核磁共振谱仪，以及用多DSP系统改造了MSL-400和AC-80的控制台。并比较了这三种系统的数据采集与处理系统的原理、特点及优缺点。现在这些谱仪在实验室工作正常，测试表明其良好的性能和先进的功能都达到了预期的结果。同时介绍了一种数字信号处理算法——参考反转卷积算法在核磁共振波谱学中的应用。本文介绍了参考反转卷积算法的原理与基本算法，并且用Visual C++编程实现了该算法，矫正了谱图的线型、提高了谱图的分辨率。更多还原

【Abstract】 Digital Signal Processing(DSP) is one of the most powerful techniques that will shape science and engineering in the twenty-first century. It has developed a deep DSP technology, with its own algorithms, mathematics, and specialized techniques in NMR area. In this dissertation, some applications of digital signal processing technique in Nuclear Magnetic Resonance are introduced.By using the Digital Signal Processor, a project for updating NMR spectrometer was implemented. The ADSP system was used to update the computer system of XL-200 spectrometer, the LIBRA system was the main part of a home-build NMR spectrometer for both solids and liquids, and the multiple DSP system was used to digitize the consoles of MSL-400 and AC-80. Now these spectrometers work well in our lab, and test results show that their good performance and advanced functions meet the requirements as expected.Furthermore, a kind of digital signal processing algorithm, reference deconvolution, was described. The principle and basic algorithm was stated, and we used Visual C++ to realize the algorithm to correct the lineshape and enhance the resolution of spectra.更多还原