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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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WM_CHARmessageanalysis
这是对WM_CHAR消息分析的程序,希望对大家有帮助(This is a WM_CHAR news analysis program, and they hope to have everyone help)
- 2007-10-23 14:56:00下载
- 积分:1
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ntfs
NTFS完整可编译代码!由weolar修改制作!(NTFS complete code can be compiled! Produced by the modified weolar!)
- 2009-06-05 21:18:52下载
- 积分:1
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VB
说明: K3销售订单合同号和摘要更新娄据库金蝶K3老单二次开发,源代码,案例, 源代码,案例-Kingdee K3 old single secondary development, source code, case(K3 Sales Contract No. and the update database)
- 2014-08-13 14:07:06下载
- 积分:1
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lvrt5
风力发电机的matlab仿真程序,有低压穿越功能的仿真模型(The wind generator of matlab simulation program, have low voltage across the function of the simulation model
)
- 2012-05-17 18:01:00下载
- 积分:1
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Havel
这是图论里面的一个定理,即Havel定理,它是用来判断一系列的度的序列能否组成一个简单图,在这儿我实现了它。(This is the inside of a theorem of graph theory, that Havel theorem, which is used to determine whether a series of sequences degrees to form a simple graph, here I realized it.)
- 2014-02-25 16:22:50下载
- 积分:1
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matlab_fem
Introduction to programming finite element with matlab
- 2012-12-01 04:49:46下载
- 积分:1
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dspzs
本书全面系统地介绍了DSP芯片的基本原理、开发和应用。首先,介绍了目前广泛使用的DSP 芯片的基本结构和特征,定点和浮点DSP处理中的一些关键问题。然后,对用C 语言和MATLAB 语言进行DSP算法的模拟进行了介绍。(This book a comprehensive and systematic introduction to the basic principles of DSP chips, the development and application. First of all, on current DSP chips are widely used in the basic structure and characteristics of fixed-point and floating-point DSP to deal with some of the key issues. Then, using C language and MATLAB language for DSP algorithm simulation are introduced.)
- 2009-04-17 21:15:16下载
- 积分:1
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p0802
说明: \matlab编写的车牌定位的程序,两个.m文件(\ Matlab written procedures for license plate location, 2. M file)
- 2010-04-29 22:21:37下载
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triangle
效率极高的基于delaunay三角网格剖分程序,只是没有图形输出,可以只将生成文件直接导入matlab中。(Based on highly efficient delaunay triangular mesh generation process, but there is no graphics output, you can only generate documents in directly into matlab.)
- 2007-11-14 21:31:19下载
- 积分:1