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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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speakeridentification
用vq算法进行说话人识别,能达到良好的效果(Using VQ speaker recognition algorithm can achieve good results)
- 2020-06-26 20:20:02下载
- 积分:1
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LSCF
频域的模态参数识别方法之一,可以对振动信号进行分析处理,得出结构的固有频率,阻尼比,振型系数,方法很好,程序完整(Frequency-domain modal parameter identification methods that can analyze the vibration signal processing, draw the structure of natural frequencies, damping ratio, mode shape coefficient, very good method, program integrity)
- 2020-07-03 06:20:02下载
- 积分:1
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mesht
一个通过实际应用的“
人工鱼群算法”,效果很好的。(Through the practical application of the " artificial fish-swarm algorithm," good effects.)
- 2009-03-23 11:06:42下载
- 积分:1
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dawabazecoincidental
C / winform_ multiple forms transfer data operations between each othe
- 2019-05-09 10:15:02下载
- 积分:1
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chapter3_4
计算语音的短时平均能量。可以作为清音和浊音的特征参数,可以作为有声无声的依据(Calculate the short-term average energy of speech. It can be used as a characteristic parameter of voiceless and unvoiced sounds, and as a basis for sound and silence.)
- 2019-04-25 18:36:40下载
- 积分:1
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DistinguishCheckDigit
网页校验码识别程序,识别网上数字校验码,准确性高。(website check code identification procedures, and identification number of online check codes and high accuracy.)
- 2007-04-12 11:45:03下载
- 积分:1
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speechrecognitionbasedonhmm
基于hmm的识别程序
识别数字0-9,识别率全对(speech recognition based on hmm
number 0-9 all right)
- 2009-05-13 11:20:37下载
- 积分:1
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UsingHTK
HTK 应用,训练数据,HCOPY,辨识语音,HMM,(HTK applications, training data, HCOPY, voice recognition, HMM,)
- 2009-11-13 15:35:50下载
- 积分:1
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Str2Wav
基于espeak的一个文本转语音的代码,可以把文本转成WAV文件(basic espaeck to translate txt to wav file)
- 2016-08-21 19:37:39下载
- 积分:1