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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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CameraCalibration
摄像机标定程序,能够求得其内部参数,误差很小,适合张正友标定方法(Camera Calibration)
- 2010-05-19 15:19:30下载
- 积分:1
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positioning
介绍了并联机器人的定位实现功能,做出了仿真程序。对初学者有很好的指导功能(Describes the positioning to achieve functional parallel robot, made a simulation program. There are a good guide for beginners function)
- 2014-09-06 21:41:03下载
- 积分:1
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DPC
trying to implimentaion of directpower control of doubly fed induction generator.
- 2018-08-06 20:27:36下载
- 积分:1
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hopfield-neural-network
Hopfield Neural Network
- 2012-05-02 19:37:05下载
- 积分:1
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UWB_matlab
模拟UWB通信系统仿真程序,包括调制方式,波形选择等等,与《超宽带通信基本原理》书结合使用非常好!(Simulation of UWB communication system simulation program, including the modulation, waveform selection, etc., and the basic principles of ultra-wideband communications, a combination of a very good book!)
- 2007-12-10 20:32:54下载
- 积分:1
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Cameron_99MTT_folded_form
Cameron 99MTT广义切比雪夫滤波器耦合矩阵计算程序(General Chebyshev response filter coupling matrix calculating tool)
- 2014-08-07 09:22:13下载
- 积分:1
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DE算法matlab程序
说明: matlab的基本差分进化算法,放在了压缩包中的word里面(The basic differential evolution algorithm of MATLAB is put in the word in the compressed package)
- 2020-04-03 18:55:23下载
- 积分:1
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EMD
希尔伯特——黄HHT中的EMD分解过程,一个emd模型的版本(Hilbert- Huang HHT in the EMD decomposition process, a model version of the emd)
- 2010-01-29 17:36:35下载
- 积分:1
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DCT
DCT数字图像水印算法的源代码!含有图像的水印的嵌入和水印的提取!(DCT digital image watermarking algorithm source code! Containing the watermark image watermark embedding and extraction!)
- 2021-03-25 10:29:13下载
- 积分:1