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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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bpsk_generator
The MATLAB function generates a BPSK modulated signal with and without noise.
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Chapter3
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ofdm_simu
说明: 使用MATLAB,对基于IFFT/FFT实现的OFDM系统进行仿真(The use of MATLAB, based on IFFT/FFT in OFDM system to achieve simulation)
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Affractalp
应用毯子法求一幅图像的分形维维数,matlab上的应用方法
(The application of a blanket of an image through the fractal dimension of the Matlab application method)
- 2012-07-18 20:50:55下载
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work
CR行列式计算几何非线性空间杆系结构的通用matlab程序(CR determinant geometrically nonlinear space truss structures generic matlab program
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- 2013-12-29 11:35:46下载
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mpskfile
MPSK matlab file. for the simulation of mpsk modulation technique. which is digital technique based on phase shift keying.....
- 2009-07-06 18:11:14下载
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DS_CDMA
自己编写的MATLAB程序,原创,希望有用(I have written MATLAB program, originality, I hope useful)
- 2013-10-24 19:17:51下载
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SJGC
matlab仿真,随机过程,泊松过程产生级仿真过程。(this is soft simulink and use matlab,so we can learn possion process and its how to produce.matlab is powerful soft for it.)
- 2011-12-13 20:38:18下载
- 积分:1