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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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raodi
用matlab实现的固体模型，绕地球飞行的活动物体。(Using matlab realize solid model, the activities around the world flying objects.)
- 2008-03-22 17:18:06下载
- 积分：1
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MATLABbase
matlab的基础知识 适合刚接触该软件的使用者(matlab basic knowledge for users of the software刚接触)
- 2008-03-24 18:01:52下载
- 积分：1
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5
说明： C++的简单例子，让你对C++有个基本的了解。(A simple example of C++, C++ so you have a basic understanding.)
- 2010-12-19 16:55:23下载
- 积分：1
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communication.simulation
说明： 该程序包括了通信系统的相关仿真程序（matlab），并给出了QPSK、MPSK、BPSK等调制方式的相关matlab仿真程序。(The procedures include the communications system simulation related procedures (Matlab), and gives a QPSK, MPSK, such as BPSK modulation of Matlab simulation program.)
- 2020-10-05 16:17:38下载
- 积分：1
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chapsig4
matlab实现信号脉冲 matlab实现信号脉冲(Matlab signal pulse s ignal pulse Matlab)
- 2021-01-07 21:38:52下载
- 积分：1
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linecoords
Edge detection result should be enhanced using linear method like Median filter to
remove the garbage around the pupil to gain clear pupil to determine perfect centre. Get the
centre of the pupil by counting the number of black pixels (zero value) of each column and
row. Then get each row and column that has the maximum number of these black pixels.
Then determine the center by simple calculation according to the image coordinate to set it
correct on the image, consequently we can determine the radius of the pupil. Thus we can find
the pupillary boundary (inner). A similar procedure is extended by using a coarse scale to
locate the outer boundary (limbus) which can be apparent by using the mid-point algorithms
of circle and ellipse.
- 2011-11-18 02:06:20下载
- 积分：1
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DCT
基于DCT数字水印算法的Matlab实现源代码(DCT-based digital watermarking algorithm Matlab source code)
- 2013-04-24 19:11:04下载
- 积分：1
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r-lda
Matlab source codes for the regularized linear discriminant analysis (R-LDA)，Author: Lu Juwei，Bell Canada Multimedia Lab, Dept. of ECE, U. of Toronto，Released in 01 November 2004 (Matlab source codes for the regularized linear discriminant analysis (R-LDA), Author: Lu Juwei, Bell Canada Multimedia Lab, Dept. Of ECE, U. of Toronto, Released in 01 November 2004)
- 2008-08-12 17:42:48下载
- 积分：1
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km_demo
k均值是想过程,开发工具是MATLAB。详细实现了k均值算法(k-means is to want to process,the development is matlab)
- 2012-06-25 20:31:14下载
- 积分：1
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