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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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time-series
说明: 用MATLAB完整的时间序列预测模型,适合多种方法(With a complete MATLAB time series forecasting model, suitable for a variety of methods)
- 2010-03-20 07:29:23下载
- 积分:1
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kalman-flitering-(CPP_C_MATLAB)
卡尔曼滤波简介及其算法实现代码C++_C_MATLAB(kalman flitering)
- 2012-05-24 16:02:07下载
- 积分:1
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MATLAB-7.X
matlab7.X程序开发以及matlab编程学习(matlab7.X program development and learning matlab programming)
- 2013-10-29 08:54:49下载
- 积分:1
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RGB
This is an example of the combining programme using VC++6.0 and Matlab 7.0.
- 2009-09-16 15:35:51下载
- 积分:1
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计算各种混沌系统李雅普洛夫指数的MATLAB 源程序
通过matlab仿真程序计算各种混沌系统李雅普诺夫的数值和图(Calculate the values and graphs of various chaotic system Lyapunov)
- 2017-11-06 11:31:51下载
- 积分:1
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control-of-che-zi
说明: 倒立摆的控制,采用常用的PID算法,现在没有加其他的算法,或许对一些同学有用。(Inverted pendulum control, with common PID algorithm, the algorithm is not added to the other, may be useful for some students.)
- 2011-03-21 23:15:42下载
- 积分:1
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Mathematica
matlab教程ppt,适用于初学者,有程序(matalb )
- 2009-06-06 18:28:10下载
- 积分:1
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cer
通过小程序的仿真是现阶段的定位以及相关内容的撰写(Sure to upload high quality source code and website writing seriously upload information, including content description (at least 20). Try not to let the owners have spent time on the revised instructions you. Unpack the archive and can not have a password)
- 2013-03-21 20:16:31下载
- 积分:1
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Autofocus
介绍Auto focus的文章,主要介绍了对焦技术,探测技术;包括频域分析、目标函数、目标函数效能验证、影像评估效能之因素、高斯低通滤波器参数的选取、自动对焦技术;以及相关实验结果与分析。(Introduction Auto focus of the article introduces the focus technology, detection technology including frequency domain analysis, the objective function, the objective function performance verification, image assessment of the effectiveness of the factors, Gaussian low-pass filter parameter selection, auto-focus technology and related experimental results and analysis.)
- 2009-11-26 15:51:46下载
- 积分:1