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DFT
信号与系统试验报告
离散傅立叶变换(DFT)和频谱分析
一、实验内容
1、实验题目
(1)编写DFT、IDFT程序,并验证其正确性(提示:可利用冲激函数进行验证)。
(2)计算信号f(t)=e-at2sin(2∏ft)的离散傅立叶变换(DFT),求其振幅谱,相位谱、振幅最大值对应的频谱(检测主频)以及对发f(t)进行DFT变换的结果实现IDFT变换,并画出图形。
参数选择如下:频率f =30HZ,a=f 2㏑(M),M=2.5
2、通过实验理解信号振幅谱、相位谱的物理意义,掌握DFT、IDFT算法的实现方法。()
- 2008-05-07 10:38:59下载
- 积分:1
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Apriori-association
基于matlab的关联规则在实际中的用途很广泛,欢迎使用(matlab apriori)
- 2009-12-27 20:45:12下载
- 积分:1
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ULA_window_
均匀线列阵加权波束形成,包括均匀加权,hanning, hamming, blackman和chebychev加权,并给出极坐标图。(Uniform linear array weighted beamforming, including the uniform weighted, hanning, hamming, blackman and chebychev weighted, and give the polar diagram.)
- 2012-05-17 10:25:08下载
- 积分:1
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inverter_svpwm_threelevel_Add_BusBalance
说明: 三电平逆变器的建模,可以用于二极管钳位型三电平主电路的设计,采用的是SVPWM算法(Modeling of three level inverter)
- 2021-04-06 00:25:18下载
- 积分:1
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robot_arm
机器人的simulink模型,能够看到原代码。希望对你的学习有所帮助。(robot Simulink model will be able to see the original code. You want to learn some help.)
- 2007-06-13 08:24:08下载
- 积分:1
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PV_Array_Author_rupesh
simulation in matlab simulink of a pv array for solar energy conversion
- 2011-10-18 23:21:06下载
- 积分:1
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shuzixinhaochuli
这是基于matlab的数字信号处理的实验。里面有详细的要求和程序解答,适合初学者。(This is based on digital signal processing matlab experiments. There are detailed requirements and procedures to answer, for beginners.)
- 2011-10-19 22:15:25下载
- 积分:1
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MATLAB
matlab中的一些参数建模的方法,例如AR模型,ARMA模型,周期图法,多窗口法,最大熵法,以及小波分析的应用举例。(Some of the parameters of the matlab modeling methods, such as AR model, ARMA model, a periodic chart, window method, the maximum entropy method, as well as the application of wavelet analysis, for example.
)
- 2011-11-16 08:48:53下载
- 积分:1
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WAVEDEC
这是一系列的小波的程序,很有用的,包括小波,小波树,小波反变换等等,这是我的毕业设计的东西(This is a series of wavelet procedures, very useful, including wavelet, wavelet tree, wavelet transform, and so on. This is my graduation design things)
- 2006-11-10 21:34:09下载
- 积分:1
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sourcefile
最优化方法,作业,包括BFGS,SUMT惩罚函数法等(Optimization)
- 2009-12-10 20:59:22下载
- 积分:1