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NMR-data-processing-water-detector
核磁共振（NMR）技术探测地下水是目前唯一的直接找水的地球物理方法。与传统的地球物理方法相比具有高分辨力，高效率，信息量丰富和解唯一性等优点。利用核磁共振地下水探测系统可以高效率地进行区域水文地质调查，确定找水远景区，圈定地下水在三维空间内的分布，进而可靠地选定水井位置等。但是由于水中氢核产生的核磁共振信号的幅度小（纳伏级），要求探测系统的灵敏度高，将引入大量的自然和人为噪声，导致采集信号的信噪比低，解释结果不清楚。
本文用LMS自适应算法提高MRS信号的信噪比，用Hilbert变换提取MRS信号的包络信号，用线性拟合提取水文地质参数并通过仿真实验结果，验证了本文提出的数据处理方法的有效性和准确性。
(Nuclear magnetic resonance (NMR) technique to the detection of direct water division is the only geophysical method to find water. Compared with conventional high-resolution geophysical methods, efficient, informative unique advantages of reconciliation. Groundwater exploration using nuclear magnetic resonance system can efficiently carry out the regional hydrogeological investigation to determine the prospective areas to find water, delineation of ground water distribution in three-dimensional space, and then reliably the location of the selected wells. However, because the water proton NMR signal amplitude generated by small (Na V level), requiring high sensitivity detection systems, will introduce a large number of natural and man-made noise, resulting in low signal to noise ratio acquisition, interpretation of results is not clear.
In this paper, LMS adaptive algorithm improves the MRS signal to noise ratio, with the Hilbert transform to extract the signal envelope MRS signal ext)
- 2013-05-15 20:23:30下载
- 积分：1
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chapitre1
this chapter describe a study of source renewable energie.
- 2013-04-02 20:30:30下载
- 积分：1
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开题报告PPT模板
说明： This is a slide for the design of a graduation thesis for students of automation major. Includes digital filtering, pulse measurements in the class of four different defense slides.
This is a slide for the design of a graduation thesis for students of automation major. Includes digital filtering, pulse measurements in the class of four different defense slides.
- 2020-01-08 11:13:01下载
- 积分：1
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cognitive-radio-Simulation-world
MATLAb code for Basic Model of Cognitive Radio
- 2014-08-30 01:28:15下载
- 积分：1
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comm.code
matlab code of a carier
- 2010-12-05 15:34:18下载
- 积分：1
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OFDM_CFO
设计仿真方案，比较两个CFO的性能（基于CP与基于训练符号 Moose），并画出不同SNR下的两种估计技术的均方差（MSE）性能。
- 2015-02-01 15:38:19下载
- 积分：1
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MIS
是不错的MIS规划书，基于C、java、vb、vc等都可以，很好的编程资料(It s a good planning book about MIS,basing on Cjavavbvc...,good programing material)
- 2012-03-01 19:00:24下载
- 积分：1
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Phase-plane-analysis
相平面分析的matlab程序例子，希望对大家有用(Phase plane analysis matlab program examples, we hope to be useful)
- 2014-11-08 21:56:43下载
- 积分：1
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chadongbaohujiexian
介绍了变压器差动保护接线的问题，系统讲解了保护原理，解决方案以及效果等等。(jieshao le bianyaqi chadong baohu jiexian de wenti。xitong jiangjie le baohu yuanli，jiejue fang an yiji xiaoguo etc)
- 2012-07-26 09:00:00下载
- 积分：1
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STM32ESD
ESD protection for STM32F10x USB interfence
- 2015-09-02 14:59:45下载
- 积分：1
