pso1

《Dynamical Systems with Applications using MATLAB》源代码("Dynamical Systems with Applications using MATLAB" covers standard material for an introduction to dynamical systems theory. The text deals with both discrete and continuous systems. )

The Periodic Pulse Signal in matlab

matlab 编写的微分进化算法，供大家学习参考(matlab write differential evolutionary algorithm for everyone to learn information)

耳蜗实质上相当于一个滤波器组，耳蜗的滤波作用是在对数频率尺度上进行的，在1000HZ下，人耳的感知能力与频率成线性关系；而在1000HZ以上，人耳的感知能力与频率不构成线性关系，而更偏向于对数关系，这就使得人耳对低频信号比高频信号更敏感。Mel频率的提出是为了方便人耳对不同频率语音的感知特性的研究。频率与Mel频率的转换公式为(Cochlear substantially equivalent to a filter set, cochlear filter is used on logarithm frequency scale, under the 1000 hz, the perception of the human ear and a linear relationship with frequency In more than 1000 hz, the perception of the human ear does not constitute a linear relationship with frequency, and prefer to logarithmic relationship, which makes the human ear is sensitive to low frequency signal is better than high frequency signal. Mel frequency is put forward in order to facilitate the ear of the study of speech perception characteristics of different frequency. For frequency and Mel frequency conversion formula )

基于SHE的谐波消除方法，使用simulink实现。具有13阶以内消除的功能(Harmonic elimination method based on the SHE, using simulink implementation. Has the function of eliminating within 13 order)

使用matlab进行有限差分法的计算，使用迭代法对差分方程进行求解，自适应中值滤波代码(Finite difference method)

说明：  matlab 图像处理 显示两幅子图像的归一化互相关(matlab image processing show that two sub-image of normalized cross-correlation)

在DSP实现自适应均衡器的程序，LMS算法，对于学习MATLAB有一定用处。(Adaptive equalizer in the DSP program, LMS algorithm, MATLAB has some use for learning.)

T_XTIDE Tidal prediction YOUT=T_XTIDE(STATION) makes a tidal prediction for the current day using the harmonics file XTIDE. Predictions at other times can be generated using [...]=T_XTIDE(STATION,TIM) where TIM is a vector of matlab-format decimal days ( DATENUM). If TIM is a scalar then it is taken as the number of days present over which to make predictions. If TIM>1000 then it is taken to be the starting time in matlab-format. at the matlab time JD (UTC, but see code for details) where tau = lunar time s = mean longitude of the moon h = mean longitude of the sun p = mean longitude of the lunar perigee np = negative of the longitude of the mean ascending node pp = mean longitude of the perihelion (solar perigee)

主元分析方法，主要用于提取主元，数据降维(Principal components analysis)