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speechprocessing
- 语音处理软件, GUI 界面,本人原创,频域,时域,可以看波形,WINDOW FUNCTION, 录音,
ocxWave_071123_1555
- 显示波形数据的控件,主要是显示时域数据供信号人员分析
chengxu3
- 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
record111111
- 该代码可以录音,并且保存,能显示出时域和频域的波形,还能计算出信噪比。
chengxu 按心电信号画出信号时域波形和频谱图
- 1.找点一段心电信号,画出信号时域波形和频谱图; 2. 利用MATLAB中的随机函数产生噪声加入到心电信号中,使心电信号被污染,读出污染后的号并画出对应信号的时域波形和频谱图; 3.用双线性变换法设计一个Butterworth带通滤波器,输出所设计的滤波器的阶次,分子、分母多项式的系数,画出滤波器的频率响应(幅频响应和相频响应)曲线;(也可以根据自己需要设置滤波器性能指标) 带通通滤波器设计性能指标:fs1=10Hz, fp1=20Hz, fp1=1000Hz, fs2=120
pulse
- 脉搏信号分析 (1)设计滤波器,实现对脉搏信号的噪声抑制和基线纠漂; (2)时域分析:波形特征检测; (3)功率谱分析:对消噪后的信号进行功率谱分析。要求计算信号的功率谱,功率谱峰值,峰值频率。 -Pulse signal analysis (1) design the filter, to achieve the pulse signal noise suppression and baseline drift correction (2) time-domain analy
CWsinal
- matlab绘制CW信号的时域波形,同时对信号进行频谱分析,并考察采样频率以及信噪比对频谱分析的影响。-matlab draw CW signal time-domain waveform, and spectral analysis of signals and the sampling frequency and signal to noise ratio study of the impact of spectrum analysis.
LPM
- 用matlab绘制线性调频信号的时域波形,同时对信号进行频谱分析,并考察采样频率以及信噪比对频谱分析的影响。-Matlab drawing with linear frequency modulation signal time-domain waveform, and spectral analysis of signals and the sampling frequency and signal to noise ratio study of the impact of spectrum
fencha
- 编写分叉图的计算程序; 选择一个混沌区的控制参量a,并编写时域波形的计算程序-Bifurcation diagram of the preparation program Choose a zone of chaos control parameter a, and the preparation of time-domain waveform of the calculation program
chengxu-(6)
- 正弦信号的时频特性由振幅、角频率和初相位三个量确定,此程序是正弦信号时域波形的绘制-Sinusoidal signal from the time-frequency characteristics of amplitude, frequency and initial phase angle to determine three quantities, this procedure is time-domain sinusoidal signal waveform drawing
fencha
- 编写分叉图的计算程序;选择一个混沌区的控制参量a,并编写时域波形的计算程序-Bifurcation diagram of the preparation program Choose a zone of chaos control parameter a, and the preparation of time-domain waveform of the calculation program
LVBOQI-SHEJI1
- 录制一段自己的语音信号,并对录制的信号进行采样;画出采样后语音信号的时域波形和频谱图;通过matlab界面进行编程设计,界面方便人们操作- Their record a voice signal, and recording the signal is sampled draw sample after the time-domain waveform and frequency spectrum of the speech signal designed by matlab progr
lfm_compression
- 用IDL编写的线性调频信号模型,可以显示时域波形和频谱图-Chirp signal model IDL prepared, you can display the time-domain waveform and frequency spectrum
wavesiginal_figure
- 关于几种小波函数的时域波形及尺度函数,值得参考和学习。-About the time domain waveforms and scaling function of several wavelet function, it is also useful and learning.
Analog-modulation-and-demodulation
- 模拟线性调制系统的调制和解调原理,编写AM、DSB、SSB调制,并画出时域波形和频谱图-Analog modulation and demodulation principle of linear modulation systems, the preparation of AM, DSB, SSB modulation, and draw time-domain waveform and frequency spec
discrete-Fourier-transform
- 1、用Matlab产生正弦波,矩形波,并显示各自的时域波形图; 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,要求注明; 3、绘制三种信号的均方根图谱; 4、用IFFT回复信号,并显示恢复的正弦信号时域波形图。 -1, using Matlab to generate sine wave, square wave, and shows the respective time-domain waveform 2, FFT transform, disp
语音hanmingchuang
- hanming窗时域和频域波形,程序运行后相应的汉明窗时域波形和幅频特性
main
- 根据谐波叠加法生成PSD曲线对应的时域代表性样本(The representative samples of PSD curves corresponding to time domain are generated based on harmonic superposition method.)
add_noise_pinyutu
- 进行纯净信号和加噪信号的时频域显示,及其包络图显示,并计算加噪信号的信噪比、互相关系数、峭度值,对信号进行离散余弦变换。(The time-frequency domain display of pure signal and noise-added signal and its envelope diagram display are carried out, and the signal-to-noise ratio, correlation coefficient and kurtosis
声发射数据处理matlab
- 本程序为傅里叶变换,给定初始时域波形,可得到对应频域波形。可出图(The program is Fourier transform. Given the initial time-domain waveform, the corresponding frequency-domain waveform can be obtained. Drawing out)