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robust filtering in Krein space

1D声学计算程序 由matlab编写，包括FEM和BEM，适合初学者(1D acoustic calculation program written by matlab, including FEM and BEM, suitable for beginners)

基于有限元基础编写的方形流道内不可压稳态流动。(Based on the the square flow passage prepared on the basis of the finite element incompressible steady-state flow.)

简单函数优化的遗传算法程序，遗传算法从问题解的串集开始搜索，而不是从单个解开始。这是遗传算法与传统优化算法的极大区别。传统优化算法是从单个初始值迭代求最优解的；容易误入局部最优解。遗传算法从串集开始搜索，覆盖面大，利于全局择优。(A genetic algorithm program optimized by simple functions)

实现均匀pcm编码的matlab函数，可以把波形转换为PCM编码(Matlab code for uniform pcm function can be converted to PCM encoded waveform)

说明：  传统的脉搏血氧R值提取大多采用脉搏波的峰谷值法.一个脉搏周期的峰谷值往往不能反映真实的R值，因此通常采用多个周期峰谷值的平均来提高R值的精度。提供了移动平均算法进行脉搏血氧信号特征值提取源码。(Traditional pulse oximetry R value extraction most of the peak value of the pulse wave method. A peak value of pulse cycles often do not reflect the true R value, usually more than one cycle, the average of the peak value to improve the accuracy of the R value. Moving average algorithm to extract the source pulse oximeter signal eigenvalue.)

i can interface between mcu an pc with matlab programming

利用similink，建立的buck-boost电路，属DCDC电路的一种(BUCK-BOOST electric circuit)

指纹识别算法的matlab程序，用的算法是gabor滤波器(matlab program of fingerprint recognition algorithm , using the algorithm of gabor filter)

对正弦波进行FFT（快速傅立叶变换）得到幅频谱图，均方根谱图，功率谱图，对数谱图，并进行IFFT恢复出正弦波。(FFT and IFFT)