搜索资源列表
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3下载：
1．用Matlab产生正弦波,矩形波,以及白噪声信号，并显示各自时域波形图
2．进行FFT变换，显示各自频谱图，其中采样率，频率、数据长度自选
3．做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱
4．用IFFT傅立叶反变换恢复信号，并显示恢复的正弦信号时域波形图
,1. Using Matlab generated sine wave, rectangular wave, as well as the white noise signal, and display their
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二维傅里叶变换,对图像进行二维傅里叶变换处理-Two-Dimensional Fast Fourier Transform
The purpose of this project is to develop a 2-D FFT program "package" that will be used
in several other projects that follow. Your implementation must have the capabilitie
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给出了数字信号处理课程设计的基本程序，包括采样、快速傅里叶变换、功率谱分析等。-Give a digital signal processing of the basic procedures for curriculum design, including sampling, fast Fourier transform, power spectrum analysis.
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题目：离散富立叶变换（DFT）和频谱分析.matlab实现 1信号函数h(t)= e-a*t*tsin(2πft)2编程计算的离散富立叶变换（DFT）和IDFT图像。3计算振幅谱，相位谱以及检测信号主频-Title: Discrete Fourier Transform (DFT) and spectral analysis. Matlab function to achieve a signal h (t) = ea* t* tsin (2πft) 2 programming computin
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利用分步傅里叶方法计算光纤激光器输出脉冲光谱-The use of step-by-step Fourier method pulse fiber laser output spectrum
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matlab program that read an image and shows its 2d fourier spectrum
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利用DFT法求周期信号的功率谱,实现离散傅立叶变换DFT,最后分析得到频谱幅度.-DFT method using the power spectrum of periodic signals seeking to achieve the Discrete Fourier Transform DFT, the final analysis, amplitude spectrum obtained
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Computing Fourier Series and Power
Spectrum with MATLAB.
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用MATLAB实现数字图像的傅里叶变换，显示图像频谱-Digital images using MATLAB Fourier transform, display the image spectrum
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本上传讲解了傅里叶变换与频谱分析之间的关系，通过fft的到信号的频谱图-Explained the Fourier transform of the upload and spectral analysis of the relationship between the fft of the signal through the frequency spectrum
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LFM信号的分数傅里叶变换分析，包含LFM信号分数阶谱图产生及FrFt子程序，及峰值搜索。非常好-LFM signal s fractional Fourier transform, including the LFM signal generation and FrFt fractional spectrum of subroutines, and peak search. Very easy to use.
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直接序列扩频通信系统，快速傅里叶变换的matlab程序-Direct sequence spread spectrum communication systems, fast Fourier transform matlab program
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小波包变换的MATLAB程序,快速傅立叶变换频谱分析-Wavelet packet transform MATLAB program, fast Fourier transform spectrum analysis
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利用MATLAB中的GUI（图形用户界面），实现图像的灰度化，直方图，图像的错切变换，直方图均衡化，量化图像及图像的傅里叶频谱，是效果更加明显。-In MATLAB GUI (graphical user interface), to achieve graying, histogram, image conversion cut the wrong image, histogram equalization, quantized image and the image of the Fouri
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信号的傅里叶变换，及对信号的时域进行频谱分析的程序代码及说明-Signal is the Fourier transform of the time domain signal and spectrum analysis of the code and descr iption
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对非平稳信号进行分段、截取，再做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征。(The non-stationary signals are segmented and intercepted, and then the short-time Fourier transform is used to analyze their frequency spectrum characteristics, and the frequency charact
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对非平稳信号进行分段、截取，将非平稳信号转化为平稳信号，再做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征。(The non-stationary signals are segmented and intercepted, and then the short-time Fourier transform is used to analyze their frequency spectrum characteristics, and the fre
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对非平稳信号进行分段、截取，再对处理过后的短时信号做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysis of the spectrum charac
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对非平稳信号进行分段、截取，再对处理过后的短时信号做短时傅里叶变换，分析其频谱特性，并找到各个时间节点的频率特性，以便分析不同事件段内的声音特征，达到区分不同声音的目的。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysis of the spe
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基于MATLAB 的语音信号频谱分析与去噪研究
1、通过Matlab读入语音信号，进行频域分析
2、绘制语音信号频谱；
3、设计滤波器并进行滤波；
4、加噪，对比语音信号波形和频谱(Research on speech signal spectrum analysis and denoising based on MATLAB
1, read the voice signal through Matlab and analyze it in frequency domain.
2, draw t
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