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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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RLS_suanfa
说明： 学习自适应天线，RLS最常见一种算法，这里提供其编程思路，供参考(Learning adaptive antenna, RLS algorithm is the most common kind, which offers its programming ideas, for reference)
- 2011-02-23 23:26:49下载
- 积分：1
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chaotic_maps
Chaotic maps. Matlab simulation.
- 2007-09-30 18:26:40下载
- 积分：1
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boost_PCM_simulink_in
基于平均法的boost型DC/DC建模步骤，包括电压模和峰值电流模。增加了误差放大器放大倍数的确定，电源调整率，负载调整率和三种变换器的一阶等效模型(Based on the average of the boost-type DC/DC modeling steps, including the voltage mode and peak current mode. An increase of the error amplifier to determine the magnification, adjust the rate of power supply, load-adjusted factor and three first-order equivalent converter model)
- 2009-03-10 10:46:57下载
- 积分：1
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MST_Kruskal
克鲁斯卡尔算法，属于图论解决最短路径的叫优化的算法。(Kruskal algorithm, graph theory to solve the shortest path is called optimization algorithms.)
- 2011-07-20 19:14:00下载
- 积分：1
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p205ESO
用simulink搭建的自抗扰控制器中的ESO(The ADRC controller simulink structures of ESO)
- 2021-04-16 21:58:54下载
- 积分：1
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matlabcodes
matlab related prgrams
- 2014-12-13 13:22:32下载
- 积分：1
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shili
matlab gui, 包括了4个很好的例子：
1.具有多个坐标轴的GUI，主要学习控制哪一个坐标轴是绘图命令的对象和用编辑文本框读入输入的数。
2.列表框目录阅读器，主要学习获取路径，加载，打开文件
3.从列表框中存取工作区变量，学习把存在于基本工作区的变量名放进列表框，选择多项等
4.地址簿阅读器，这个比较综合，用得技术也比较多。包括打开，保存，修改mat文件，利用handles结构保存和重新调用共享数据。(matlab gui, including four very good example: 1. with multiple axes of GUI, the main learning control which axis is the object of drawing commands and edit the text boxes with the number of read input. 2. The list box directory reader, the main study to obtain the path, load, open the file 3. From the variable list box to access the work area, learning the basic work area exists in the variable names into the list box, select a number of other 4 . address book readers, the more integrated, more technology used. Including open, save, modify mat file, save and re-use handles structure called shared data.)
- 2010-06-04 01:37:49下载
- 积分：1
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Probability_and_Information_An_Integrated_Approac
This is an updated new edition of the popular elementary introduction to probability
theory and information theory, now containing additional material on Markov
chains and their entropy. Suitable as a textbook for beginning students in mathematics,
statistics, computer science or economics, the only prerequisite is some
knowledge of basic calculus.
- 2009-04-08 15:42:02下载
- 积分：1
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2D
说明： Riemann integral. Adaptative method, 2D
- 2009-10-28 07:19:20下载
- 积分：1
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