Acquisition-of-the-speech-signal

运用matlab编写，可用于一维信号压缩，经验证应用效果较好。(Using matlab prepared for one-dimensional signal compression, proven applications better.)

CHOLMOD: a sparse Cholesky factorization package

This is the code of DEEC protocol of wireless sensor network. It is a matlab code

Computes earth magnetic field using the IGRF model

K均值聚类的一个实例，附上.dat文件和程序以及运行结果，和大家一起讨论，呵呵(K means clustering of an example, attached. Dat files and programs, and operating results, and we can discuss, Oh)

说明：  用matlab绘制三次样条曲线。系数由c++程序计算得出。(Matlab draw with cubic spline curve. Coefficient by c++ Procedures calculated.)

实验一：三次样条插值（P56，例6） 一、实验目的： 1) 掌握三次样条插值的运用 2) 了解拉格朗日插值在高次上的误差 二、实验环境：Matlab6.5 三、实验内容： 1) 给定函数f(x)=1/(1+x2)，-5<=x<=5，节点xk=-5+k，(k=0,1,2…10)，用三次样条插值求S10(x)，S10’(-5)=f’(-5)，S10’(5)=f’(5)。 2）作原函数f(x)，拉格朗日插值函数Ln(x)，三次样条差值函数Sn(x)。画出三个函数的图像，比较它们的区别。 (Experiment I: cubic spline interpolation (P56, cases of 6) First, the experiment was: 1) cubic spline interpolation to master the use of 2) understanding of Lagrange interpolation in high-error second, experimental environment: Matlab6 .5 c, experimental elements: 1) a given function f (x) = 1/(1+ x2),-5 <= x <= 5, node xk =- 5+ k, (k = 0,1,2 ... 10), using cubic spline interpolation for S10 (x), S10 (-5) = f (-5), S10 (5) = f (5). 2) for the original function f (x), the Lagrange interpolation function Ln (x), cubic spline difference function Sn (x). Draw the three functions of images, compare the difference between them.)

source code for bss for separating audio

matlab中S函数的应用实例，求绝对值(matlab application examples of the S-function, absolute value)

基于相位差法改变窗长的频谱校正程序，适用于单频率信号的校正(Phase method to change the window length based on the spectrum correction procedure for a single frequency signal correction )