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shujudefenxi
这是matlab关于数据分析的经典程序，欢迎参考(This is a classic matlab on the data analysis procedures, please refer to)
- 2009-10-08 11:01:05下载
- 积分：1
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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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pattern
group pattern in matlab source code
- 2010-05-06 20:55:05下载
- 积分：1
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Digital-image-processing-
数字图像处理（张德丰版）源代码，在MATLAB上实现的(Digital image processing (Zhang Defeng version) source code, implemented in MATLAB)
- 2011-10-12 18:20:20下载
- 积分：1
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cdma
直接序列扩频的缩写（DS-SS ）
二相相移键控（BPSK）
matlab源代码(An acronym for Direct Sequence Spread Spectrum (DS-SS) two-phase phase shift keying (BPSK) matlab source code)
- 2021-04-07 15:39:01下载
- 积分：1
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tidian
vba, to get point in an autocad
- 2012-07-25 14:26:37下载
- 积分：1
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Power_Method
利用幂法求矩阵特征值，属于数值解法的一种(Using power method to find eigenvalues of matrices, which is a kind of numerical solution.)
- 2021-03-09 22:59:27下载
- 积分：1
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DFP
DFP法，变尺度法，优化算法的一种，具有二次收敛性，若目标函数为二次正定函数，经有限步可达到极小点(DFP method, variable metric method, an algorithm with quadratic convergence, if the objective function is quadratic positive definite function can be achieved by the finite step minima)
- 2010-12-26 22:09:09下载
- 积分：1
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bisection
bisection method of matlab
- 2011-06-30 04:33:07下载
- 积分：1
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sipangzi
用monte carlo 方法计算圆周率pi,采用的是随机投点法。以及另一个应用程序(with monte carlo methods calculated pi pi, the vote is random point method. And another application)
- 2007-05-16 09:39:35下载
- 积分：1
