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对小麦声信号进行编辑和预处理，实验结合信号处理技术及MATLAB软件
我国是世界上小麦种植面积最大和消费最高的国家之一。小麦为国际主粮之一，也是食品工业的重要原料。作为最重要粮食品种之一的小麦，其价值与用途取决于它的品质。因此，基于信号处理技术，研究客观、便捷的小麦品质测定方法对提高小麦品质、减少产后损失、保证国家粮食安全具有十分重要的意义。本课题拟在研究、分析国内外无损检测技术在农产品品质分析应用现状和研究进展的基础上，研究小麦籽粒声信号的预处理方法。根据声学检测原理，研制出小麦籽粒的声信号采集装置，首先采集小麦籽粒下落碰撞所产生的声音信号，对小麦声信号进行编辑和预处理，实验结合信号处理技术及MATLAB软件，对单粒小麦样品的声信号进行谱估计和小波变换，提取出时域和频域特征参数，为探讨小麦声学特性与其品质指标的关系奠定基础。本论文利用MATLAB软件编写小麦声音信号预处理程序，通过对小麦籽粒声信号进行处理，成功的提取出了有效的时域、频域的多种特征参数，为研究其声学特性与小麦品质内在的关系，做了充分的准备工作。(China is one of the countries in the world which has the largest wheat growing area and highest consumption. Wheat is one kind of the staple food in the world and also an important material for food industry. The value of wheat and its use all depends on is quality, To enhance quality of wheat,readuce post harvest loss and ensure grain security, great efforts should be made to develop rapid, objective, and easy methods for assessing wheat quality using signal processing techniques. This paper do the research of wheat signal preconditioning method and it basis of analysis domestic and foreign non-destructive testing technology.According to acoustic detection theory,an equipment of obtaining wheat sound signals is developed. Collecting the dropping voice signals of different varieties of wheat samples.And then do editing and sound signal preprocessing on wheat through signal processing technology.This paper do some research about spectrum estimate and wavelet transform on single wheat wi)
- 2020-06-30 06:40:02下载
- 积分：1
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Signalcompression_Bior
说明： 在matlab环境中采用Bior小波对信号进行压缩降噪并对比(Matlab environment in the signal using wavelet compression Bior noise reduction and contrast)
- 2011-03-10 22:21:24下载
- 积分：1
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ieee3
reasearch papar or ieee paper for master of engineering student in matlab
- 2011-10-31 18:47:20下载
- 积分：1
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fangzhen
在matlab 中的单相并联有源电力滤波器 APF的 仿真(simulation of APF in matlab)
- 2021-04-15 18:48:54下载
- 积分：1
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c_matlab
关于c语言与matlab编程接口的一本电子书 对嵌入式仿真有一定帮助(On the c programming language and matlab interfaces to the embedded simulation of an e-book will definitely help)
- 2009-11-06 19:40:52下载
- 积分：1
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Done
说明： 用MATLAB进行ASK、FSK、PSK的编码和解码的仿真程序，并对其误码率进行分析(Using MATLAB for ASK, FSK, PSK encoding and decoding of the simulation program, and analyze its BER)
- 2010-04-23 22:40:57下载
- 积分：1
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envelop
说明： 信号包络分析，对信号进行包络分析，求出上包络，和下包络信号(Analysis of signal envelope)
- 2011-04-12 10:47:33下载
- 积分：1
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BPSK_OFDM_SimulationByMatlabCode
用matlab仿真的BPSK_OFDM_Simulation的代码(Simulation using matlab code BPSK_OFDM_Simulation)
- 2011-04-20 21:20:53下载
- 积分：1
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chap3
程序代码说明
P0301：数字图像矩阵数据的显示及其傅立叶变换
P0302：二维离散余弦变换的图像压缩
P0303：采用灰度变换的方法增强图像的对比度
P0304：直方图均匀化
P0305：模拟图像受高斯白噪声和椒盐噪声的影响
P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
P0308：图像的自适应魏纳滤波
P0309：运用5种不同的梯度增强法进行图像锐化
P0310：图像的高通滤波和掩模处理
P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理
P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理(Code Description
P0301: digital image data display matrix and Fourier transform
P0302: Two-dimensional discrete cosine transform image compression
P0303: gray-scale transformation method using the contrast enhanced image
P0304: Histogram of homogenization
P0305: simulated images by Gaussian white noise and salt and pepper noise of
P0306: two-dimensional median filter function medfilt2 on the image noise by filtering salt and pepper
P0307: using MATLAB in the function filter2 noise on the image by mean filter
P0308: Image Adaptive Weiner Filter
P0309: the use of 5 different gradient enhanced image sharpening method
P0310: the image of the high-pass filter and mask treatment
P0311: Using Butterworth (Butterworth) low pass filter the image noise by smoothing
P0312: Using Butterworth (Butterworth) high pass filter sharpening the image)
- 2010-05-17 18:20:35下载
- 积分：1
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BP-YYSB
使用BP算法实现语音识别及预测的功能，调试可用(BP algorithm to achieve the function of speech recognition and forecast)
- 2012-05-18 22:16:12下载
- 积分：1
