搜索资源列表
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- 语音信号加密，通过语音信号频率的变换实现的语音加密解密算法-encrypted voice signal through the voice signal frequency transform voice encryption and decryption algorithm
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
an_intellegent_audio_water_marking_based_on_dwt-s
- All three, Discrete Wavelet Transform (DWT) - Singular Value Decomposition (SVD) and Adaptive Tabu Search (ATS) have been used as mathematical tools for embedding data into an audio signal. In this paper, we present a new robust audio waterma
soundsignal
- 将声音文件在时间轴上分割成几段，分别将段的秩序及某些段内的秩序颠倒，从而实现了对声音文件的加密。首先，先读取一个声音信号，对信号做1024点FFT变换，取完点之后，分成四个向量，四个向量组成一个矩阵，再对每一个向量进行转置，再重新整合，从而就实现了回密的过程。-Sound files on the timeline will be divided into paragraphs, each paragraph of the order and reversed the order of some
1D_Gabor_transform
- 这个MATLAB软件包实现了小波在一维Gabior样转换的文件中所述： [1] K.N.乔杜里，M.，王凤琴，“建设希尔伯特变换的双 波基和Gabor变换，“对信号的IEEE交易 加工，第一卷。 57，没有。 9，3411-3425，2009年9月。 作者：K.N.乔杜里。 模块如下： --------------------------- 1。 demo.m 一个简单的例子演示软件的使用。 2。 autcorr.m
wavelet
- 小波变换的程序，包含正变换和反变换，在地震信号上测试通过-Wavelet Transform program contains forward transform and inverse transform, tested on a seismic signal
4for1w_v2
- 小波变换实现微弱信号检测 BPSK QAM FSK-Wavelet transform weak signal detection BPSK QAM FSK
aaa
- 一维小波变换的实现，对信号的处理。实现原始信号的还原处理。-Achieve one-dimensional wavelet transform signal processing. Achieve reduction treatment of the original signal.
DCT
- iii) Discrete Cosine Transform The transform of a signal is just another form of representing the signal. It does not change the information content present in the signal. Discrete cosine transform is widely used in image and video compression appl
sFFT-1.0-2.0.tar
- 稀疏傅里叶变换算法利用了数字信号处理，特别是高斯和多尔夫-切比雪夫滤波器的技术。与传统的解决方法不同，对于这个问题我们的算法是不迭代的。也就是说，它用一种类似绘制/流式算法的方式“一次”识别并估计k个最大系数，而并非估计“大”系数以及在提示下相减、递归。-Sparse Fast Fourier Transform (SFFT) is a class of sub-linear time algorithms for computing the discrete Fourier transfo
06168353
- The Fast Fourier Transform (FFT) is one of the rudimentary operations in field of digital signal and image processing. Some of the very vital applications of the fast fourier transform include Signal analysis, Sound filtering, Data compressio
Examplefft-(2)
- 包含快速傅里叶变换，有源滤波器仿真图形，对故障电流信号进行派克矢量变化等等。-Contains fast Fourier transform, active filter simulation graph, the fault current signal parker vector change and so on.
transform
- returns true if the signal occured false for timeout Source Code for Embedded Linux. -returns true if the signal occured false for timeout Source Code for Embedded Linux.
HHT
- HHT就是先将信号进行经验模态分解（EMD分解），然后将分解后的每个IMF分量进行Hilbert变换，得到信号的时频属性的一种时频分析方法。-HHT is a first signal to carry on the empirical mode decomposition (EMD decomposition), and then decomposed each IMF component of the Hilbert transform, get signal time-frequency
huadongpingju
- 传统傅里叶变换（Fourier Transform）分析方法已经在众多的领域内产生巨大影响。特别在1965年之后，快速傅里叶变换（FFT）算法的发现及改进使得离散傅里叶变换（DFT）实现了高效的数学实现，为数字信号处理技术应用于各种信号的实时处理创造了条件，加速了离散时间信号与系统分析技术的发展。-it good for you.Traditional Fourier transform (Transform Fourier) analysis method has a great impact
paojessing
- 数字信号处理的视频分析中短时傅立叶变化STFT和连续小波变化(Digital signal processing of short time Fourier transform in video analysis STFT and continuous wavelet change)
KJZLEW
- 数字图像在产生过程中经常会受 在传统的基于傅里叶变换的信号去噪音方法(Digital image in the produce process will often be in the traditional method based on Fourier transform of signal to noise)