搜索资源列表
enframe
- 该函数可以对语音信号进行加窗和分帧,简洁有效-enframe for speech signals
OFDM
- 基于自适应压扩法降低OFDM系统的峰均比。正交频分复用(OFDM,Orthogonal Frequency Division Multiplexing)技术可以出色的对抗抗多径衰落、消除码间干扰且具有极高的频谱利用率。此外它还采用了快速傅立叶变换,大大降低了收发机的实现复杂度,因此被广泛地应用于HDSL、ADSL、DAB、HDTV、WLAN等领域中。 但是,目前OFDM技术还有很多关键问题没有得到有效解决,如对频偏敏感、高峰均功率比问题等,这些都限制了OFDM技术的近一步广泛应用。本论文主要
AraDict
- 主要介绍了语音识别的相关知识,分帧加窗检测识别等,并且介绍了相应的平台开发。-Mainly introduces the knowledge of speech recognition, sub-frame windowed detection and identification and so on, and introduced the corresponding platform.
addwin
- 用vc6编写的各种计算机语音加窗程序,可用于实验和科学研究等各种用途-Prepared using vc6 windows plus a variety of computer speech program can be used for a variety of experiments and scientific research purposes
matlab
- 使用MATLAB进行对信号的加窗和dtft计算-Carried out using the MATLAB signal increases in the calculation window and dtft
Gabor
- Gabor变换属于加窗傅立叶变换,Gabor函数可以在频域不同尺度、不同方向上提取相关的特征。另外Gabor函数与人眼的生物作用相仿,所以经常用作纹理识别上,并取得了较好的效果。-Gabor transform belongs to the windowed Fourier transform, Gabor function can be in the frequency domain on different scales and different directions extract re
Chirp_2D
- 二维线性调频信号仿真,分为不加窗的和加窗的。-Simulation of chirp signal in two-dimention
watermarking
- 对音频信号分帧加窗,对每帧进行三阶小波变换,取其逼近系数平均值(一般为零).在此嵌入二值图像 并有对潜入水印信号进行盲检,恢复其嵌入水印-Sub-frame of the audio signal increases the Hamming window for each frame impletment third-order wavelet transform, whichever is close to the average coefficient (usually zero). a
pracsim1
- 通信基本仿真,适合初学者学习的代码,包括了调制,分析等等:使用IIR filter的经典模拟滤波器(巴特沃斯Butterworth,切比雪夫Chebyshev),Bartlett周期图谱,加窗Bartlett周期图谱,基带波形仿真,IIR的贝塞尔滤波器Bessel Filter,二进制对称信道Binary Symmetric Channel仿真,比特序列,Remez滤波,BPSK复合基带信号仿真,载波生成器,椭圆滤波器Elliptical Filter,FFT,FSK调制及解调,高斯噪声Gaus
pracsim-2
- 通信基本仿真2适合初学者学习的代码,包括了调制,分析等等:使用IIR filter的经典模拟滤波器(巴特沃斯Butterworth,切比雪夫Chebyshev),Bartlett周期图谱,加窗Bartlett周期图谱,基带波形仿真,IIR的贝塞尔滤波器Bessel Filter,二进制对称信道Binary Symmetric Channel仿真,比特序列,Remez滤波,BPSK复合基带信号仿真,载波生成器,椭圆滤波器Elliptical Filter,FFT,FSK调制及解调,高斯噪声Gaus
pracsim-3
- 通信基本仿真3,适合初学者学习的代码,包括了调制,分析等等:使用IIR filter的经典模拟滤波器(巴特沃斯Butterworth,切比雪夫Chebyshev),Bartlett周期图谱,加窗Bartlett周期图谱,基带波形仿真,IIR的贝塞尔滤波器Bessel Filter,二进制对称信道Binary Symmetric Channel仿真,比特序列,Remez滤波,BPSK复合基带信号仿真,载波生成器,椭圆滤波器Elliptical Filter,FFT,FSK调制及解调,高斯噪声Gau
SinFm-wvs
- 这个文件包含了正弦调频信号的魏格纳威利分布以及经过平滑和加窗后的伪魏格纳威利分布和平滑伪魏格纳威利分布-This file contains a sinusoidal FM signal of the Wigner distribution and Na Weili after smoothing processing window of the pseudo-Wigner-Na Weili smoothed pseudo-Wigner distribution and the distribu
OFDMtest
- 提供了OFDM 信号的产生、传输以及接受全过程。在发送端用到16-QAM调制方式,信道模型为多径衰落信道,接收端分析了误码性能。并且对OFDM 信号做了加窗处理,使其频谱性能更佳!-Provides the OFDM signal generation, transmission and acceptance of the entire process. In the sending side to use 16-QAM modulation mode, channel model for mu
sg
- 本源程序为语音信号短时傅里叶变换分析 包括加窗 分帧处理-The source for the voice signal short-time Fourier transform analysis includes windowed sub-frame processing
Spectral
- 频谱泄露及加窗的simulink仿真文件,研究频谱泄露现象及加窗的解决方法。-Spectral leakage and increase window simulink simulation of documents, studies the phenomenon of spectral leakage and windowing solution.
myVoice
- 用matlab将hanning窗、hamming窗、Blackman窗画在同一个图中。语音分帧,加窗,短时能量,短时过零率,端点检测-Using matlab to hanning window、hamming window and Blackman window draw in the same graph.Voice sub-frame, add windows, short-term energy, short-term zero-crossing rate, endpoint detec
LS
- 本程序给出了最小二乘滤波算法的具体编程,程序中分析比较了自相关算法、协方差算法、前后向加窗算法的滤波效果-This procedure gives the least squares filtering algorithm specific programming, program analysis and comparison of the auto-correlation algorithm, covariance method, before and after windowing alg
pushang
- 有频带方差和谱熵法。自己实现加窗分帧。里面设计傅里叶变换还有矩阵的运算。-speech endpoint detection. frequence_diff and pushang.
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
Psd_091024I
- Welch法功率谱密度 Psd自功率谱 是用改进的平均周期图法来求随机信号的自功率谱估计 采用信号重叠分段,加窗函数和fft算法等计算一个信号的自功率谱估计(PSD)-Welch法功率谱密度 Psd自功率谱 是用改进的平均周期图法来求随机信号的自功率谱估计 采用信号重叠分段,加窗函数和fft算法等计算一个信号的自功率谱估计(PSD)