Description: 对实测岩石物理数据进行处理，分析获得速度、振幅、主频率、品质因子等参数，并绘制出波形图和振幅谱图。-The measured petrophysical data processing, analysis gain speed, amplitude, predominant frequency, quality factor and other parameters, and draw the waveform and amplitude spectrum. Platform: |
Size: 26624 |
Author:why |
Hits:
Description: 小波变换进行变速箱故障诊断
首先将s1和s2信号时域谱（s1代表维修前的振动信号，s2代表维修后的振动信号），画出来进行对比，会发现s1信号的振动幅值会比较高；然后对s1和s2分别进行小波分解并画出各层的时域谱，只对比s1和s2分后的最高时域谱，s2更加的具有周期性，且幅值较小，s2周期性不够明显，且振动过于密集。分析完时域谱后开始分析频谱，首先对原信号s1和s2fft转换，得到频谱图，如图，然后再对小波分析后高频部分进行fft转换，做出频谱图。对比后我们发现，在f 2375HZ出（也就是齿轮的啮合频率），s1信号频谱幅值会有急剧的升高，然后，其谐波的幅值也会增大。所以可以推断出该维修前的增速箱的齿轮可能出现问题。-Gearbox fault diagnosis based on wavelet transform s1 and s2 first time domain signal spectrum (s1 behalf of the vibration signal before maintenance, vibration signal s2 representative of repaired), drawn comparison, you will find a signal s1 vibration amplitude will be higher then s1 and s2 respectively wavelet decomposition and draw the layers of time-domain spectrum to only a maximum time domain spectroscopy s1 and s2 points after, s2 is more cyclical and smaller magnitude, s2 cyclical enough obviously, and the vibration is too dense. End domain spectral analysis after the beginning of the spectrum analysis, the first of the original signal s1 and s2fft conversion to give the spectrum, as shown, and then after the high frequency part of wavelet analysis fft transformation to make spectrum. We found that after the comparison, at f 2375HZ out (i.e. the gear mesh frequency), there will be a sharp increase in the amplitude spectrum of the signal s1, and then, the amplitude of the ha Platform: |
Size: 2048 |
Author:lililili |
Hits:
Description: matlab下图像处理中幅度谱相位谱以及图像重构的例子。-An example of amplitude spectrum phase spectrum and image reconstruction in image processing under matlab. Platform: |
Size: 1024 |
Author:陈远 |
Hits:
Description: 分析线性调频LFM波的实部,虚部,和幅度谱,其带宽、持续时间是可控的-To analyze the real component of the LFM, imaginary part, and the amplitude spectrum, its bandwidth, duration can controllable Platform: |
Size: 1024 |
Author:LORDlude |
Hits:
Description: 本程序是用于信号频谱分析的实验程序。主要功能是进行信号的幅值谱计算；同时可完成在选定范围内谱峰的精确频率、幅值和相位计算（计算结果为cos相位）。-This procedure is an experimental.procedure for signal spectrum analysis.
The main function is to calculate the amplitude spectrum of the signal. At the same time, the exact frequency, amplitude and phase calculation of the peak in the selected range can be completed (the result is cos phase). Platform: |
Size: 1024 |
Author:detao |
Hits:
Description: 可以对振动信号进行傅里叶变换，得到幅值谱或功率谱。(Fourier transform of the vibration signal can be used to obtain amplitude spectrum or power spectrum.) Platform: |
Size: 1024 |
Author:zhr777
|
Hits:
Description: 具有声音录制，滤波，分析波形，回放波形功能，含有频谱图，相位谱，幅值谱(It has the functions of sound recording, filtering, analyzing waveform and replaying waveform, including spectrum, phase spectrum and amplitude spectrum) Platform: |
Size: 27648 |
Author:jujuyik00
|
Hits:
Description: 关于画HHT方法中包络谱和幅值谱的程序，可以精确画出Hilbert包络谱的图像(On painting HHT method in the envelope spectrum and amplitude spectrum procedures, you can accurately draw Hilbert envelope spectrum of the image) Platform: |
Size: 2048 |
Author:雅静梦涵
|
Hits:
Description: 双矩形脉冲的正反傅里叶变换 (1) 画出以上式子所定脉冲的时域波形; (2)画出信号的振幅谱 abs(sf);(3) 将第二步所得的频谱求傅里叶反变换，并画出其波形，并与原始信号对比;(Positive and inverse Fourier transform of double rectangular pulses
(1) draw the above formula set by the pulse waveform; (2) draw the signal amplitude spectrum of ABS (SF);
(3) the frequency spectrum obtained by the second step is inverse transform, and its waveform is drawn and compared with the original signal.) Platform: |
Size: 38912 |
Author:纷纷666
|
Hits:
Description: 根据分配的频率，任意输入6位（8位）电话号码，打印出相应的幅度谱和6位（8位）电话号码。(According to the frequency of distribution, 6 phone numbers are randomly input, and the corresponding amplitude spectrum and 6 bit telephone number are printed out.) Platform: |
Size: 1024 |
Author:one111 |
Hits:
Description: 高精度时频变换方法及应用，有效提高了时频变换的稳定性和精度(To inversely transform matching pursuit time-frequency
distribution into time signal, a new method for matching
pursuit time-frequency representation was proposed by
weighting the waveform of the Morlet wavelet by its
amplitude spectrum in the frequency direction.) Platform: |
Size: 1336320 |
Author:Joo Kai |
Hits:
Description: 将两张图像和两段音频幅度谱和相位谱进行交换，显示最后结果，使用python语言，开发环境等信息详见readme.txt(The two images and two segment audio amplitude spectrum and phase spectrum are exchanged, and the final results are displayed. The information of the environment, such as the python language, the development environment, and so on, is detailed in the readme.txt) Platform: |
Size: 3465216 |
Author:日月BA |
Hits:
Description: 功能包括：
(1) 音频信号信号输入，从声卡输入、从WAV文件输入、从标准信号发生器输入；
(2) 信号波形分析，包括幅值、频率、周期、相位的估计，以及统计量峰值、均值、均方值和方差的计算；
(3) 信号频谱分析，频率、周期的估计，图形显示幅值谱、相位谱、实频谱、虚频谱和功率谱的曲线。(Functions include:
(1) input of audio signal signal, input from sound card, input from WAV file, input from standard signal generator;
(2) the analysis of the signal waveform, including the estimation of amplitude, frequency, period and phase, and the calculation of the peak, mean, mean square value and variance of statistics.
(3) the analysis of the signal spectrum, the estimation of frequency and cycle, and the graphs showing the curves of amplitude spectrum, phase spectrum, real spectrum, virtual spectrum and power spectrum.) Platform: |
Size: 18432 |
Author:a74520623 |
Hits:
Description: 压缩文件里边包含好几个合成地震记录的程序，包括楔形模型，断层等，有的还画出了地震记录，反射系数的振幅谱~(the zip file contains several synthetic seismogram programs, including wedge model, fault model, etc., some even draw the earthquake records, the reflection coefficient of amplitude spectrum ~) Platform: |
Size: 4163584 |
Author:决战群侯 |
Hits:
Description: 语音信号的时域、频域与倒谱域分析。
1.分析一帧清音和浊音的自相关函数和倒谱系数
2.用Matlab画出该段语音的时域波形、短时能量、短时平均幅度、短时过零率、短时过电平率
3.选择一帧无声、清音和浊音的语音，用Matlab画出它们的对数幅度谱(Time domain, frequency domain and cepstrum domain analysis of speech signals.
1. Analyze the autocorrelation function and cepstrum coefficient of unvoiced and voiced sounds
2. Use Matlab to plot the time domain waveform of the speech segment, short-term energy, short-term average amplitude, short-term zero-crossing rate, and short-term overshoot ratio.
3. Select an unvoiced, unvoiced, and voiced sound and use Matlab to plot its logarithmic amplitude spectrum) Platform: |
Size: 146432 |
Author:jacek |
Hits:
Description: 离散信号的DTFT和DFT
分别计算16点序列 的16点和32点DFT，绘出幅度谱图形，并绘出该序列的DTFT图形。(DTFT and DFT for discrete signals
The 16 point and 32 point DFT of the 16 point sequence are calculated respectively, and the amplitude spectrum pattern is drawn, and the DTFT figure of the sequence is drawn.) Platform: |
Size: 1024 |
Author:kuaijg |
Hits:
Description: 首先对采样信号进行傅里叶变换，计算出功率谱或幅值谱，然后用功率谱或者幅值谱的数据，计算每一个中心频率的带宽内数据的平均值。(Firstly, Fourier transform is applied to the sampled signal to calculate the power spectrum or amplitude spectrum, and then the average value of the data within the bandwidth of each center frequency is calculated by using the power spectrum or amplitude spectrum data.) Platform: |
Size: 1024 |
Author:林轩轩 |
Hits:
Search - amplitude spectrum