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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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c7
说明： 利用该程序可实现插值运算，达到差值滤波，CI插值滤波器的实现(cascador integrator comb fliter s design)
- 2012-03-31 17:32:29下载
- 积分：1
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samples
SURF_DETECTOR
SURF (Speeded Up Robust Feature) is a robust image detector and descriptor, first presented by Herbert Bay et al. in 2006, that can be used in computer vision tasks like object recognition or 3D reconstruction. It is partly inspired by the SIFT descriptor.
- 2012-04-02 09:27:06下载
- 积分：1
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MATLAB-Codes
simple example to learn matlab control flow structur
- 2013-02-03 04:57:08下载
- 积分：1
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ZCS_ZVS
this file is m-file for design of ZCS/ZVS converter
- 2013-09-22 17:37:56下载
- 积分：1
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ccmex_eam_VBSP
co-SIMULATION INTEGRATED WITH oPTISM IN ORDER TO DO SIMULATION OF SINGLE MODE FIBER
- 2015-04-02 15:06:16下载
- 积分：1
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libsvm-3.12
code matlab svm ( suport vector machine )
- 2014-06-11 18:33:36下载
- 积分：1
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无线传感器节点部署定位模糊聚类算法采用数量积求相似矩阵
无线传感器节点部署定位模糊聚类算法采用数量积求相似矩阵 输入样本矩阵(The localization algorithm of wireless sensor nodes is based on fuzzy clustering algorithm.)
- 2018-11-07 10:46:56下载
- 积分：1
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rainflow
matlab雨流算法。The rain flow algorithm code has been prepared according to the ASTM standard (Standard practices for cycle counting in fatigue analysis) and optimized considering the calculation time.
(rain-flow algorithm matlab. The rain flow algorithm code has been prepared according to the ASTM standard (Standard practices for cycle counting in fatigue analysis) and optimized considering the calculation time.)
- 2007-11-17 02:06:37下载
- 积分：1
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MATLAB_graph_example
MATLAB图论源程序..EXAMPLES(MATLAB_GRAPH_EXAMPLES)
- 2010-02-07 14:25:36下载
- 积分：1
