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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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baiguangyanshe
白光衍射很好的matlab仿真程序，可以运行实现的。(Bai Guangyan shoot good matlab simulation program can be run to achieve.)
- 2013-11-12 10:48:34下载
- 积分：1
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jamkhjmo
这是一个相对完整的OFDM通信系统的仿真设计，包括编码，调制，IFFT，上下变频，高斯信道建模，ABVSwM 信道，PAPR抑制，各种同步，解调和解码等模块，并统括系统性能的仿真验证了系统设计的GHEPmLd系统的可靠性。
(This is a relatively complete simulation design OFDM communication system, comprising Encoding, modulation, IFFT, down conversion, Gaussian channel modeling, ABVSwM code , PAPR suppression, a variety of synchronization, demodulation and decoding module, and omnibus Simulation system performance verification system GHEPmLd design reliability.
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- 2016-02-05 09:24:25下载
- 积分：1
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Communication_theory_of_computer_simulation_based_
通信原理基于Matlab的计算机仿真教程:北京邮电大学出版社，一本很好的教材(Communication theory of computer simulation based on Matlab tutorial: Beijing University of Posts and Telecommunications Press, a very good textbook)
- 2010-07-02 07:38:40下载
- 积分：1
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matlabcalendar
使用matlab做出显示在屏幕上的精美日历(Using matlab to display beautifully on the screen calendar)
- 2007-12-20 18:07:32下载
- 积分：1
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Eye_t230312
Device on off with eyes
- 2013-03-14 19:07:12下载
- 积分：1
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Desktop
说明： 进行抽水蓄能机组常规机组仿真，水轮机采用恒定值代替，后续会补充水轮机模型(Simulation of conventional units of pumped storage units)
- 2020-11-16 21:59:28下载
- 积分：1
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伪谱法解算最优控制
radau伪谱法解算最优控制，无须安装第三方优化工具箱(RPS optimal control matlab toolbox)
- 2014-03-28 10:17:37下载
- 积分：1
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TR_OQAM_EW2014
TIME REVERSAL TECHNIQUE COMBINED WITH OFDM/OQAM IN MISO SYSTEM
- 2020-07-02 18:00:01下载
- 积分：1
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canny
canny算子源代码用于关于边缘检测的毕业论文，可以以此为基础进行修改。(canny operator source code for a thesis on the edge detection can be modified on this basis.)
- 2010-06-09 14:29:15下载
- 积分：1
