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说明：  source code for rotation invatiant feature extraction

vector quantization split algorithm for matlab source code function

Matlab book Engineering Matlab Programming Engineering Matlab Programming

用短时傅立叶变换对信号进行时频分析，并有频谱图随着窗的大小进行的对比。(Using short-time Fourier transform of the signal time-frequency analysis and frequency spectrum as the window size of the contrast.)

主要是应用pso工具箱来优化函数griewank，实现粒子群对函数的测试(Mainly applications pso toolbox to optimize function griewank, and particle swarm function test)

matlab simuling 太阳能光伏阵列最大功率点跟踪仿真，mppf(matlab simuling maximum power point tracking photovoltaic array simulation, mppf)

说明：  共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数。(The Conjugate Gradient method is a method between the steepest descent method and the Newton method. It only needs to use the first derivative information, but overcomes the shortcomings of the steepest descent method and avoids the need for the Newton method to store And the calculation of Hesse matrix and the inverse of the shortcomings, conjugate gradient method is not only to solve large-scale linear equations one of the most useful methods, but also solution for large-scale nonlinear optimization of one of the most effective algorithm. In a variety of optimization algorithms, conjugate gradient method is a very important one. The advantage is that the required storage capacity is small, with step convergence, high stability, and does not require any external parameters.)

a pll example in matlab

基本角点检测方法的算法代码！ 无错误，直接运行！(Basic corner detection algorithm code! Error-free, direct run!)

航位推算代码，内含三种常见的平滑处理方法代码 内含部分数据(Dead reckoning code, containing three common smoothing method code)