Wavelet-Packet-Denoisin

armold 变换是数字图像置乱中常用的一种方法。本文给出了armold 变换的matlab源代码，以方便大家的使用。(armold digital image scrambling transformation is commonly used methods. In this paper, armold transform matlab source code to facilitate everyone' s use.)

The function conload takes a dataset and a model (PCA, PLS, PARAFAC etc.) and calculates congruence loadings which is the extension of correlation loadings to uncentered and multi-way models(The function takes a dataset and a m odel (PCA, PLS, B6 etc.) and calculates congruence loadi ngs which is the extension of correlation loadi ngs to uncentered and multi-way models)

资料中介绍了几种经典信噪比估计算法的编码并进行比较，包括误差矢量幅值法、最大似然估计、迭代法以及奇异值分解法。(Data introduces several classical coding SNR estimation algorithm and compared, including error vector magnitude, maximum likelihood estimation, iterative method and singular value decomposition.)

用matlab编写的harris角点检测代码。(Matlab prepared with harris corner detection code.)

This function can be used for Colour segmentation from the RGB Color images

1．通过实验加深对快速傅立叶变换（FFT）基本原理的理解。 2．了解FFT点数与频谱分辨率的关系，以及两种加长序列FFT与原序列FFT的关系。 离散傅里叶变换（DFT）和卷积是信号处理中两个最基本也是最常用的运算，它们涉及到信号与系统的分析与综合这一广泛的信号处理领域。实际上卷积与DFT之间有着互通的联系：卷积可化为DFT来实现，其它的许多算法，如相关、滤波和谱估计等都可化为DFT来实现，DFT也可化为卷积来实现。(1. Deepen the experimental fast Fourier transform (FFT) the basic tenets of understanding. 2. Understand the FFT spectrum and points of the resolution, and two extended sequence with the original FFT FFT relations. Discrete Fourier Transform (DFT) and the convolution of two signal processing is the most commonly used basic arithmetic, they relate to the signal and system analysis and synthesis of the wide range of signal processing field. DFT actually convolution and interoperability between contact : DFT into convolution can be achieved in many other algorithms, If relevant, filtering and spectral estimation could be achieved as DFT, DFT into convolution can be achieved.)

removing after shocks in earthquake catalouge

说明：  On Maximum-Likelihood Detection and the Search for the Closest Lattice Point

程序完成的功能是用lms算法对声音去噪声。运行后先会听到canon的一小段无噪声的音乐，然后会听到加了噪声后的效果，最后会听到用lms去噪之后的声效。(Program to complete the function with lms algorithm to noise sound. Run first hear the canon of short noise-free music, plus the effect of noise will then hear, and finally will hear the sound denoising with lms.)

本程序为无线通信中ofdm的一个仿真代码，采用qpsk的调制方式，适合初级学生学习。(This program is a simulation code ofdm wireless communications, using qpsk modulation, suitable for primary students.)