-
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
-
CS-for-underwater-acoustics-master
压缩感知是目前比较火的一个领域 分享一段学习过程中发现的程序 matlab语言(CS-for-underwater-acoustics-master)
- 2019-07-09 09:26:48下载
- 积分:1
-
sort
用于神经元峰电位主成分分析提取特征系统聚类进行分类(use for classfy)
- 2010-05-11 18:42:19下载
- 积分:1
-
zuiyouhua
才有matlab实现最优化理论的几个重要算法,分别是最速下降法,内点法,外点法,插值法(Matlab to achieve optimization theory have several important algorithms, namely, the steepest descent method, interior point method, external point method, interpolation method)
- 2013-11-01 12:06:37下载
- 积分:1
-
Djuric---PF
数字信号处理中粒子滤波方法 (The Particle Filtering Methodology in Signal Processing)
- 2014-01-04 23:12:11下载
- 积分:1
-
Untitled2
使用于机械最优化设计课程的检索优化方法的最速下降法(Optimized for use in mechanical retri method optimized design courses steepest descent method)
- 2015-03-22 22:42:39下载
- 积分:1
-
No5__Powells_badly_scaled_function
optimization 的经典方法,这是第五个例子,共六个方法在其中。(optimization of the classical method, which is the fifth example, a total of six ways in which the.)
- 2009-10-22 22:41:49下载
- 积分:1
-
mapping-algorithm
enhanced mapping algorith for loclaization and mapping problem
- 2013-07-28 06:09:23下载
- 积分:1
-
ContrLib
用MATLAB的脚本语言M语言编写的,用于在MATLAB环境下实现帕笛近似(高阶模型简化降阶)的程序源代码,可以在MATLAB环境下直接运行。(MATLAB M scripting language language, MATLAB environment for the realization of Palau under Di approximation (high-order model to simplify Reduction) program source code, in the MATLAB environment direct operation.)
- 2007-04-04 13:15:01下载
- 积分:1
-
C4_5_explaned
matlab的一个c4.5实现小程序,(非原创)注意将其中的break改成return,还有一些小瑕疵。(matlab c4.5 applet attention to break into the return, there are some small flaws.)
- 2013-04-23 22:34:10下载
- 积分:1