audiowatermark

信号分析程序，对信号进行分析处理。。。。(Signal analysis procedures for the analysis of signal processing)

介绍了采用电化学阻抗谱来进行锂电池的模型参数分析(lithium battery parameter estimation)

珍藏多年的matlab潮流计算程序源代码集合，包含多个潮流计算程序(A collection of matlab trend calculation program source code for many years, including multiple power flow calculation programs)

Blasius Equation for Boundary layer theory problems. For calculating the boundary layer thickness and the velocity profile in a free stream in a pipe.

  Matlab中如何求一个序列的极值？在Matlab中有专门求序列最大值和最小值的函数，分别是Max  和  Min，但是有时候我们不满足于求整个序列的最值，而是对序列的极值，也就是局部的最值感兴趣。对于解析函 数，这个比较简单，只要令一阶倒数为零求出对应的自变量就行了。(Matlab how to seek a extremum sequence? In the Matlab there is a special function for sequence of maximum and minimum values, respectively is Max and Min the value, but sometimes we do not meet for the whole series, but the extremum sequence, also is the value of local interest. For analytic functions, this is relatively simple, as long as the countdown to zero order and related variables on the line.)

Inputs: Two square matrices a and b and a natural number nk

从初值出发，先计算y对时间t的导数，得到y的变化速度；求出x对t的导数，得到x随时间的变化速度。然后时间前进一小步h=0.002，同时x和y也都发生一个小的变化，即在原来数值基础上加上时间步长h和变化速度的乘积。如果x到达1或者-1，强制让y发生变化。这个过程不断迭代，得到结果。 (completed chart)

说明：  XML解析，功能很强大，大家可以参照下，肯定会有用(XML Parser，powerful functions，you can learn something from it easily.It must be useful to you!)

OVSF，正交可变扩频因子，WCDMA扩频码(OVSF, orthogonal variable spreading factor, WCDMA spreading codes)

Simon haykin《自适应滤波器原理》的书中例子的matlab代码(Simon haykin " Adaptive Filter Theory," the book example matlab code)