simulation-PV--PHOTON

％ 用于模拟PN结中载流子的分布、电场和电势 ％ 总长为 L 的半导体截面上，左侧为 N 区，掺杂浓度 NA；右侧为 P 区，掺杂浓度为 ND ％ 假设截面积足够大( Used to simulate the PN junction carrier distribution, electric field and electric potential L total length of the semiconductor section, left for N areas, doping concentration NA the right for the P zone, doping concentration ND assumption for the cut-off an area large enough)

draws and plot acircle

说明：  聚类算法：也就是一种解决聚类问题的新型的算法(Clustering: Clustering is a solution to the problem of the new algorithm)

说明：  matlab求解方程的、方程组的程序，内附说明(matlab solve equations, equations of the process, containing instructions)

针对谐波检测问题，比较几种常用谐波检测方法，总结出各自的适用条件。结合经验模态分解理论和总体平均经验模态分解(empirical mode decomposition，EEMD)算法，提出基于EEMD的谐波检测方法。(For harmonic detection problem, comparing several common harmonic detection method, summed up their applicable conditions. Combining theoretical and empirical mode decomposition overall average empirical mode decomposition (empirical mode decomposition, EEMD) algorithm, based on harmonic detection method EEMD.)

histogram equalization

通信系统里面的2FSK调制模块，simulink仿真(2FSK modulation)

自带摄像头基于肤色的人脸检测，可实现跟踪功能。(face detection)

遗传算法无功优化，小波包分析提取振动信号中的特征频率，插值与拟合的matlab实现。( Genetic algorithm based reactive power optimization, Wavelet packet analysis to extract vibration signal characteristic frequency, Interpolation and fitting matlab implementation.)

读写segy格式和su格式的数据文件,对于从事地震数据处理的同行们很有用途哦(read and write file in segy or su format )