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short_time_Fourier_transform_of_windowed
- STFT 实现短时加窗 傅里叶 变换 分析 可用于跳频时频分析-STFT to achieve short time Fourier transform of windowed time-frequency analysis can be used for frequency hopping
daopufenxi
- 倒谱分析 倒谱分析是指信号短时振幅谱的对数傅里叶反 变换。它具有可近似地分离并提取出频谱包络信息 和细微结构信息的特点-Cepstrum analysis cepstrum analysis is the signal amplitude spectrum on the number of short-time Fourier inverse transform. It has can be approximately isolated and extracted spectral en
dspstfft_daq
- 语音信号处理 短时间傅里叶变换 STFT 使用汉明窗 -Speech Signal Processing
pinpu
- 在快速傅里叶变换大的基础上以对信号进行短时分析,能画出三维瀑布图。-In the fast Fourier transform big on the basis of the signal is short analysis, can draw 3 d waterfall diagram
mian
- 语音信号的时域分析,有短时能量,短时平均幅度,短时过零率,清音自相关序列,浊音自相关序列,傅里叶分析。-Speech signal time-domain analysis, short-time energy, short-term average, short-term zero-crossing rate, voiceless autocorrelation sequence, voiced autocorrelation sequence, Fourier analysis.
YUYINTEZHENGTIQU
- 语音参数提取:短时过零率、短时能量、短时平均幅度、自相关序列、傅里叶分析-Speech parameters extraction: short-time zero-crossing rate, short-time energy, short-term average autocorrelation sequence, Fourier analysis
tfrpwv
- 时频分析中的cohen类中最基本的双线性时频分布式wigner-ville分布,由于在该分布中不含窗函数,因此避免了短时窗傅里叶变换时间分辨率、频率分辨率相互牵制的矛盾-Time-frequency analysis of the Cohen class of bilinear time-frequency distribution is the most basic Wigner-Ville distribution, because the function in the distribut
STFrFT
- 短时分数阶傅里叶变换的Matlab子函数-short time fractional fourier transform
short-fast-fft
- 短时快速傅里叶变换-short fast fft 。
wheel-treadmonitoring
- 城轨车辆轮对踏面故障在线监测系统,基于振动检测法的轮对踏面故障监测系统,通过傅里叶变换、小波包分析对釆集到的振动信号进行分析获得信号的特征,研究了基于短时能量判断的踏面故障特征提取算法。-On line monitoring system for wheel tread of urban rail vehicles, based on the vibration detection method of wheel tread fault monitoring system, through th
Cepstrum
- 对一段语音信号进行处理 分析对象:voiced and unvoiced speech 语音中的清音和浊音 在GUI界面上实现以下功能: 1显示短时频谱 既对信号分帧后直接进行傅里叶变换 2在上面基础上经对数运算后再进行傅里叶反变换得到倒谱 显示两个图像(取对数和之后反变换的) 3根据倒谱再进行倒谱分析 用它观察自相关等等 最终实现基音周期估计(Pitch Detection)和 追踪 Pitch Tracking 这里还要应用到其他一
chazhixinhaodeFFT
- 常值函数的短时2傅里叶变换,具有循环读取数据的功能-Fourier transform
yuyinxinhaochuli
- 语音信号处理,包括信号的时域分析,频域分析,傅里叶变换,短时能量分析,倒谱,负倒谱等功能。-Speech signal processing, including signal time domain analysis, frequency domain analysis, Fourier transform, short-term energy analysis, cepstrum, negative cepstrum and other functions.
MATLAB时频分析
- 短时傅里叶变换,short-time fourier transformation,有时也叫加窗傅里叶变换,时间窗口使得信号只在某一小区间内有效,这就避免了传统的傅里叶变换在时频局部表达能力上的不足,使得傅里叶变换有了局部定位的能力。