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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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stomasticresonance
说明: 随机共振的一些论文,很有权威,对研究非线性双稳随机共振系统的人很有帮助(Some of the papers stochastic resonance, very authoritative, the study of nonlinear bistable stochastic resonance systems were very helpful)
- 2011-03-28 19:37:27下载
- 积分:1
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利用波动方程的方法对地震波的传播过程进行模拟
在地震勘探中,我们可以利用正演程序实现野外资料采集的模拟,这个程序是利用波动方程的方法对地震波的传播过程进行模拟。(In seismic exploration, we can use the forward program implements the analog field data collection, this program is the use of the wave equation method for seismic wave propagation simulation.)
- 2015-07-10 09:59:20下载
- 积分:1
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pso
使用matlab编写的蚁群算法程序,供大家参考使用。(Matlab using ant colony algorithm to prepare procedures for U.S. use and reference.)
- 2007-07-12 20:54:21下载
- 积分:1
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Untitled1
通信信号处理DOA估计中music算法的研究与实现(failed to translate)
- 2010-03-07 11:18:55下载
- 积分:1
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Art1
source code adaptive resonance theory Nural network in matlab for classification
- 2010-03-12 16:28:35下载
- 积分:1
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极化SAR图像的SLIC方法
说明: SLIC method is used to segment polarimetric SAR image and calculate classification accuracy
- 2021-02-27 15:21:21下载
- 积分:1
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wed
Abstract The study of digital signal processing normally concentrates on the
design, realization, and application of single-input, single-output digital filters.
There are applications, as in the case of spectrum analyzer, where it is desired to
separate a signal into a set of sub-band signals occupying, usually nonoverlapping,
portions of the original frequency band. In other applications, it may be desired to
combine many such sub-band
- 2014-01-15 05:53:38下载
- 积分:1
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Pole-zero_offset_filter_and_notch_filter
用matalb实现了参数可变的极零抵消滤波器还陷波滤波器输入参数既可以应用(Matalb achieved with an extremely variable parameter is also zero-offset filter notch filter can be applied to both the input parameters)
- 2009-12-19 18:26:49下载
- 积分:1
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Motor
asynchronous machine
- 2012-04-23 21:06:32下载
- 积分:1