搜索资源列表
对语音信号的短时分析
- 用matlab实现对语音信号的短时分析,包括清音和浊音的判决,基音周期的估计,实验报告。-to realize the analysis of short time of speech signal by Matlab, including the judgement of surd and sonant, the estimate of the pitch and experiment report.
DFT分析模拟信号频谱
- 应用傅里叶变换DFT,分析各种离散信号x(k)的频谱。离散周期信号可以展开成傅里叶级数,所以离散周期信号的频谱 是一个周期的周期性离散频谱,各谱线之间的间隔为 ,而且存在着谐波的关系。 -DFT application of the Fourier transform, analyze discrete signal x (k) of the spectrum. Discrete signal cycle can begin as Fourier series, the discrete sig
随机信号功率谱分析
- 理解随机信号功率谱分析原理和方法。 (1) 生成信号,被淹没在在噪声中; (2) 试用周期图法估计信号的功率谱; (3) 选用不同窗,使用修正周期图法估计信号的功率谱; (4) 对一段语音信号,使用LD算法估计其功率谱; (5) 详细列出功率谱估计的步骤和原理。 -understanding of random signal power spectrum analysis principles and methods. (1) generate signals
matlab-signal
- 用c语言实现下列的数字信号处理算法 1.离散傅里叶级数合成连续周期信号 2.DIF FFT 测试程序 3.将输入数据的幅度画出图形 4.使用FFT实现快速卷积 5.使用FFT实现快速相关 6.取样混迭演示程序 -language used to achieve the following digital signal processing algorithms 1. Discrete Fourier series synthetic signal two conse
PeriodicSignalFrequency-domainAnalysis
- 周期信号是定义在区间内,按一定时间间隔(周期)不断重复的信号。设有周期信号,周期为,角频率,且满足狄里赫利条件,则该周期信号可以展开成傅立叶级数,即可表示为一系列不同频率的正弦或复指数信号之和。傅立叶级数有三角形式和指数形式两种
matlab分析语音信号小程序
- 短时能量,短时过零率,清音浊音,基音周期。
周期图法谱估计需要对信号序列“截断”或加窗处理
- 周期图法谱估计需要对信号序列“截断”或加窗处理,其结果是使估计功率谱密度为信号序列真实谱和窗谱的卷积,导致误差的产生。本程序分别设计了周期图法,最大熵功率谱估计和Welch法以及它们的对比,最大熵功率谱估计目的是最大限度地保留截断后丢失的“窗口”以外信号的信息,使估计谱的熵最大。-Periodogram spectrum estimation signal sequence needs to " cut off" or add the window handle, the
sample8.rar
- 带有白噪声的周期信号和噪声信号的自相关,数字信号处理的经典算法。,White noise with a periodic signal and noise auto-correlation signal, digital signal processing algorithm for the classic.
matlabhuizhigezhongxinhaoboxin
- matlab绘制各种周期信号如正弦波等常用的信号,下下看吧吧吧。,matlab draw a variety of periodic signals such as sine wave signal, such as commonly used, under the under the bar and see it.
Periodogram-powe
- 平均周期图法和平滑平均周期图法估计功率谱 从经典功率谱估计周期图法原理入手,从理论上分析了其存在的局限性,借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力进行实验!! 用周期图法和welch法分别估计了一下信号的功率谱密度。采样频率200Hz,时间序列长度2048,FFT数据点数2048。其中welch法使用hanning窗,窗口长度600.-Average periodogram and periodogram smoothing method to est
matlabpinpufenxi
- matlab各种周期信号的频谱分析 。-matlab various periodic signal range of the spectrum analyzer matlab cycle spectrum analysis of signals.
Signal_system_Experiment
- 信号与系统实验源代码 包括:实验一 周期信号的谐波逼近,幅频相频分析;实验二 simulink信号的抽样和内插; 实验三 GUIDE二阶状态轨迹的显示;实验四 Wav信号的波形分析及频谱分析-Signals and systems including source code of the experiment: The experiment of a periodic signal of the harmonic approximation, the amplitude-frequency
zixiangguan
- 自相关的matlab程序。可以用于信号的周期性监测。-Since the procedures related to matlab. The cyclical nature of the signal can be used for monitoring.
lianxuzhouqixinhaopinpufenxi
- 该文件包括了连续周期信号的单边带及双边带频谱分析的所有源代码及仿真波形,设计完整,而且符合要求。-The document includes a continuous cycle, and bilateral single-sideband signal with a spectral analysis of all source code and simulation waveforms, design integrity, but also meet the requirement.
MATLAB
- 自适应信号 利用自适应信号分离器,可以有效的从白噪声中提取周期信号。现选取信号为正弦信号 ,宽带噪声信号为高斯白噪声,延迟D=50;收敛因子为 和 时的滤波效果。-Adaptive signal using adaptive signal separator, white noise can be effectively extracted from the periodic signal. Select the signal is sinusoidal signal, broadband no
周期图法
- 数字信号处理中经典谱估计的周期图法的MATLAB程序代码(Periodogram method for classical spectral estimation in digital signal processing)
信号与系统实验3
- 1、利用Matlab求观察图示周期三角脉冲的傅里叶级数与原波形的关系。要求分别画出最高谐波次数n=1,3,5,7时合成波形与原波形的对照图。(The relationship between the Fourier series of the graphic periodic triangular pulse and the original waveform is observed by Matlab. The comparison of the synthetic and original
相关分析
- 通过信号互相关处理,在任意噪声中的提取特定频率正弦信号的幅值和相位(The amplitude and phase of periodic signals are extracted through signal correlation processing.)
周期信号的频谱分析
- 通过Matlab编写M文件实现了对矩形脉冲周期信号的时域波形和频谱分析。(Time domain waveform and spectrum analysis of rectangular pulse periodic signals are realized by writing M files in Matlab.)
脉搏波信号提取
- 对脉搏信号进行滤波处理后,再进行时域分析和频域分析,提取出脉搏信号的周期、峰值、频率等特征。(After filtering the pulse signal, time domain analysis and frequency domain analysis are carried out to extract the characteristics of pulse signal such as period, peak value and frequency.)
