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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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RF_AND_MICROWAVE_POWER_AMPLIFIER_DESIGN
RF AND MICROWAVE POWER AMPLIFIER DESIGN
NONLINEAR ACTIVE DEVICE MODELING
Power MOSFETs
GaAs MESFETs and HEMTs
BJTs and HBTs
- 2010-11-01 23:50:52下载
- 积分：1
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channelequal
非常详细的自适应信道均衡程序，设计了一种用于通信信道的自适应均衡器，提供了两种均衡方法，并进行了比较。(Very detailed adaptive channel equalization process, an adaptive equalizer for a communication channel, the two equalization method, and compared.)
- 2014-01-01 12:33:11下载
- 积分：1
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stlread
reads stl files in matlab
- 2009-05-27 18:18:21下载
- 积分：1
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occ
说明： OCC变换，这是一个单周期控制模块，用于PWM的整流控制(Coordinate transformation)
- 2011-03-07 10:19:20下载
- 积分：1
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matlab-gongjuxiang
matlab工具箱，神经网络
很全面，超星版(matlab toolbox, neural network is very comprehensive, Superstar Edition)
- 2010-05-06 21:14:41下载
- 积分：1
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WiFi_Simulink
利用MATLAB语言中的simulink工具箱对无线局域网WIFI的工作过程进行了仿真，对从事无线局域网仿真工作的人员具有重要参考价值。(Using the simulink toolbox in MATLAB language for wireless LAN WIFI work process simulation, simulation engaged in wireless LAN staff has important reference value.)
- 2011-10-07 07:48:06下载
- 积分：1
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MIMO_21_22
MIMO多天线系统仿真程序，分别仿真比较了 AWGN信道 , SISO瑞利衰落信道 , 2发1收Alamouti方案 , 2发2收Alamouti方案 (MIMO multi-antenna system simulation program, were simulated and compared the AWGN channel , SISO Rayleigh fading channels , two fat a close Alamouti scheme , two 2 admission Alamouti scheme )
- 2014-10-24 16:36:43下载
- 积分：1
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zhuyaunfenxi_C
主元分析法的C语言程序，主要用在降维的方面，也可用在信号处理，故障诊断。(Principal Component Analysis Method C language program, mainly used in dimensionality reduction, can also be used in signal processing, fault diagnosis.)
- 2013-04-14 09:50:54下载
- 积分：1
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matlab-programming
用于学习matlab语言编程的PPT文档，里面含有编程源代码。(Matlab programming language for learning PPT document, which contains programming source code.)
- 2013-11-02 19:07:18下载
- 积分：1
