matlab_code

有关血氧测量算法的算法实现，分别用C语言和Matlab语言(youguan xueyang celiang suanfa de suanfa shixian fen bie yong C and Matlab)

利用PWM脉宽控制的半桥电路实现的DCDC变换器(The converter that use the PWM to control the voltage of the output。 )

说明：  本案例给出了振动信号的时域信号分析，fft分析，低通滤波分析和Hilbert包络分析代码，并将分析结果展现在一个图中进行对比。(This case gives the time domain signal analysis, FFT analysis, low-pass filter analysis and Hilbert envelope analysis code of vibration signal, and shows the analysis results in a figure for comparison.)

这是一个基于matlab编程的RussiaBlock，可以很好的学到matlab的知识，又具有娱乐性(This is a well Matlab programming RussiaBlock, learn matlab' s knowledge, but also entertaining)

some genetic algorithmes

线性调频脉冲压缩的Matlab程序,用于建立主成分分析模型，最终的权值矩阵就是滤波器的系数，包括脚本文件和函数文件形式，与理论分析结果相比，可以动态调节运行环境的参数，可以得到很精确的幅值、频率、相位估计。( LFM pulse compression of the Matlab program, Principal component analysis model for establishing, The final weight matrix is ??the filter coefficient, Including script files and function files in the form, Compared with the results of theoretical analysis, Can dynamically adjust the parameters of the operating environment, You can get a very accurate amplitude, frequency, phase estimation.)

四元数傅里叶变换代码，四元数在图像上的应用(quaternion fourier transform)

说明：  采用粗糙集理论实现连续数据的离散化,对理解数据的离散化有很大帮助(Using rough set theory to realize continuous data discretization)

说明：  用于计算图像鲁棒性的峰值信噪比和归一化相关系数。峰值信噪比值越大，说明图像处理效果越好，鲁棒性强，越小越不好。归一化相关系数值越大越好。(Images used to calculate the peak signal to noise ratio and robustness of the normalized correlation coefficient. The greater the peak signal to noise ratio, indicating that the better image processing, robust, the smaller the worse. Normalized correlation coefficient the better.)

This document shows in a simple way the near field of a dipole.You can choose the length of it.furthermore if anyone ask about this problem,please send a comment.