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声音解析matlab
- 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
STFFTtool1
- 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
STFFTtool2
- 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
keypoint
- 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，以图像的形式表达出，最终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 analysi
XiangWeiChaFa
- 利用两段信号的相对差，对非整周期采用信号的频谱进行幅值和相位的校正。(The amplitude and phase of the signal spectrum are corrected by using the relative difference of the two segment signals.)
NongLiangZHongXinFa
- 利用频谱线的能量重心原理完成对非整周期采样信号的频谱的幅值和相位的校正。(The amplitude and phase correction of the spectrum of the non periodic sampling signal is completed by using the energy barycenter principle of the spectrum line.)
频谱分析
- 对数字信号快速傅里叶变换分析，通过频率的大小来判断信号所处的阶段(Fast Fourier transform analysis of digital signals, the frequency of the size of the signal to determine the stage)
信号处理
- 对信号做频谱分析，做信息熵的处理，了解信号的频率范围以及信息量的多少。(The spectrum analysis of the signal, the processing of information entropy, the frequency range of the signal and the amount of information.)
frequency_domain
- 利用快速傅里叶变换实现泄漏声发射信号的频谱分析。(Spectrum analysis of leakage acoustic emission signal using fast Fourier transform.)
1
- 编写AM、DSB、SSB的调制程序，并画出时域波形和频谱图(Write the modulation program of AM, DSB and SSB, and draw the time domain waveform and spectrum diagram)
倒频谱
- 用于齿轮信号的倒频谱分析，程序是通的，只需修改数据文件就可以。(Cepstrum analysis for gear signal,it is through,only the data files can be modified.)
pinpufenxi
- 信号的频谱分析，用于分析波形信号的谐波特性(The spectrum analysis of signals used to analyze the harmonic characteristics of a waveform signal)
Untitled pingpu
- 可以用matlab对模糊图像画出对应的频谱图(You can use matlab to draw corresponding spectrum for blurred images.)
雷达LFM信号及其回波信号频谱
- 雷达LFM信号及其回波信号频谱，雷达信号检测到目标时候，反射后得到雷达回波信号由于多普勒效应，信号的频率发生偏移，这个源码仿真出雷达检测到目标距离信息的回波信号。
FT
- 这个程序可用于对各种时程波形进行频谱分析(This program can be used for spectrum analysis of various time history waveforms.)
fft
- 用matlab画出单音信号的频谱 和能量谱(Drawing spectrum energy spectrum of monosyllabic signal)
Matlab-FFT
- 使用Matlab对采样数据进行频谱分析的理论和方法(Theory and method of spectrum analysis of sampled data using Matlab)
通信1602_201608030217_邓杰_实验一二
- 模拟调制已调信号的波形和频谱 AM已调信号相干解调过程仿真(Waveform and Spectrum of Analog Modulated Modulated Signal Simulation of coherent demodulation process for AM modulated signal)
vmd
- 轴承故障信号vmd分解及输出频谱图和幅值图，内含main、vmd及输出频谱图和幅值图三个程序，直接用main就行(VMD decomposition of bearing fault signal and output spectrum and amplitude diagram)
频谱分析简单范例
- MATLAB下频谱分析的简单例子，输入信号为两个单频正弦信号，观察输出的频谱结构。