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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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PV
说明： 太阳能光伏电池的matlab/simulink 仿真模型，可以对光伏特性进行仿真。(Solar photovoltaic cells, Matlab/Simulink simulation model, on the photovoltaic properties of the simulation.)
- 2012-05-27 11:16:39下载
- 积分：1
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facefbtprotected
matlab code for face recognition
- 2009-03-18 15:01:34下载
- 积分：1
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GJB438B-2009
《GJB438B-2009军用软件开发文档通用要求》，最新版的(" GJB438B-2009 universal military software development documentation requirements" , the latest version)
- 2010-09-06 17:04:48下载
- 积分：1
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MallatAlgorithm
超好用的Mallat Algorithm碼源,附gui的介面,有註解可對照,試試呗(Chao Haoyong The Mallat Algorithm source code, with a gui interface, there are notes can be controlled, try chanting)
- 2009-11-09 15:54:58下载
- 积分：1
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whfilter
维纳滤波器的一些代码，实现在MATLAB7.0编程情况下维纳滤波器的实现，谢谢大家使用(filter)
- 2010-05-12 14:28:46下载
- 积分：1
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wide-band-signal-DOA-mode-space
均匀圆阵模式空间下估计信号源方向，信号源为宽带(Under the uniform circular array pattern space is estimated source direction, the signal source for broadband)
- 2011-05-10 23:37:52下载
- 积分：1
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interface-of-Matlab-and-C
MATLAB和C、C++的接口实现方法，实用中即可直接调用MATLAB中的函数！(interface of Matlab and C)
- 2013-02-02 16:50:15下载
- 积分：1
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Normal-ECG
Samples of ECG signals we used in our project the
- 2013-03-02 17:10:42下载
- 积分：1
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dsss_chaotic
1. BPSK modulation of data which ever you input (default data is
“MANIPAL REDDY”).
2. MANIPAL REDDY is changed into ASCII Format and into two-bit
format for BPSK Modulation.
3. Chaos is used for spreading the binary bit sequence.
4. Uniformly distributed Noise is added to Spread signal.
5. After reception Chaotic Chip sequence is used to recover message .
6. Filter is used for removing spikes and noise.
7. Note the filter is used is just for showing a little realisitic picture.
8. Appropriate filter should be used.
9. The original data in binary and recovered data in binary format are
compared
- 2013-11-19 03:06:40下载
- 积分：1
