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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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BlockMatchingAlgoMPEG
motion compensation agar kisi ko chahiye to mujhe mail karo ... ok ye sirf 1 file hai..
- 2009-04-16 21:22:16下载
- 积分：1
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MWinnd_TurbiiA
一种基于MATLAB Simullink的风力发电系统的风力机模型。
(A based the MATLAB Simullink wind power system wind turbine model.)
- 2012-07-19 20:16:32下载
- 积分：1
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Infrared_thermal_imaging_fisheye_design_classic_tu
红外热成像鱼眼镜头设计经典教程Infrared thermal imaging fisheye design classic tutorial(Infrared thermal imaging fisheye design classic tutorial Infrared thermal imaging fisheye design classic tutorial)
- 2010-08-03 18:44:47下载
- 积分：1
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gasionzation
说明： Ar气在CO2激光作用下的电离matlab程序代码。(co2 laser induced Ar ionzation matlab codes.)
- 2009-08-07 22:28:13下载
- 积分：1
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FULLTEXT01_thesis_Labview
Space Vector Pulse Width Modulation
for Three-Level Converters with labview very good thesis
- 2015-02-20 08:24:54下载
- 积分：1
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adaptivelms
基于小波变换的可变步长自适应LMS语音信号去噪程序，对实际复杂噪声具有很好的效果(Based on wavelet transform adaptive variable step size LMS Speech Signal Denoising procedures, the actual complexity of the effect of noise has a very good)
- 2020-11-06 17:39:50下载
- 积分：1
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Array-Pattern-Based-on-FFT
了等距线阵方向图与傅立叶变换的一致性，用F丌算法进行阵列方向图快速计算。通过严格的数学推导，揭示变换序列与可见空问的关系，讨论了不同单元问距情况下的处理方法(In this paper，the consistence of equispaced linear array pattem and foureir transfom is analyzed，so the
linear arrayy pattem can be computed rapidly with FFT a1goritllm．By the use of reUgious mathmatic deducing process，relation between transfotmation sequences and visible space are given，and different handling procedures are discussed in the case of different element spacing． )
- 2011-10-27 22:19:56下载
- 积分：1
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canshuguji
matlab用于参数估计的代码 可以处理数据分析 方便拟合(matlab code for parameter estimation can handle data analysis)
- 2010-12-04 16:29:16下载
- 积分：1
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abberation
像差分析，对像差进行模拟仿真，进行光学设计和像差校正(wavefront abberation analysis)
- 2021-04-29 14:08:43下载
- 积分：1
