sanxiangPWMzhengliu

说明：  一个基于pca算法的简单的人脸识别系统，可以参考~(Pca-based algorithm for a simple face recognition system, can refer to ~)

BFSK的rayleigh信道传输中的误码率计算(BFSK of rayleigh channel transmission bit error rate calculation)

三相SPWM逆变器仿真分析，可以出正确波形(Three-phase SPWM inverter simulation analysis, the correct waveform)

simulation of Dynamic Voltage Restorer in MATLAB simulink software.

采用了小波去噪的思想，music高阶谱分析算法，基于互功率谱的时延估计。( Using wavelet denoising thought, music higher order spectral analysis algorithm, Based on the time delay estimation of power spectrum.)

说明：  直接将ECG信号转换为HRV信号，具体阈值可以通过人工调节，识别率很高，采用自适应差分阈值法和小波变化结合(The ECG signal is directly converted into HRV signal, the specific threshold can be adjusted manually, and the recognition rate is very high. The adaptive difference threshold method and wavelet change are combined.)

说明：  车牌处理，基于matlab的图像处理方法(Plate processing, image processing method based on matlab)

利用朴实贝叶斯方法求解有关肺炎的问题。肺炎对应有四个特征：发烧、疼痛、咳嗽和血细胞异常，当确定了患肺炎与否时，四个特征条件独立。假设患肺炎与否和四个特征都可表示为Ture和False。 根据pneumonia.tex文件中的数据（500行，每行前4个数对应4个特征变量，第5个数对应患肺炎是否为真，以0表示False，1表示Ture），编写Matlab 程序 maininference.m，从example.txt中读取病人的症状信息（0表示False，1表示True，-1表示not given），并计算对应的患肺炎的可能性。所给的信息按发烧、疼痛、咳嗽、血细胞异常的顺序排列。将计算结果保存在answer.txt中。(Simple Bayesian method to solve the question of pneumonia. Pneumonia corresponding four characteristics: fever, pain, cough and blood cell abnormalities, determine the risk of pneumonia or not, the four characteristics of conditional independence. Assumptions suffering from pneumonia or not and four features can be represented as Ture and False. According to the data pneumonia.tex file (500 lines, each line of the first four numbers corresponding to the four characteristic variables, number 5 corresponds to the risk of pneumonia is true, 0 represents False, said Ture), to write Matlab program maininference. m from example.txt read the information of the patient' s symptoms (0 = False, said True, the-1 indicates not given), and to calculate corresponding to the likelihood of suffering from pneumonia. The information given by the order of fever, pain, cough, blood cell abnormalities. The calculated results is be saved in answer.txt.)

MIT-BIH心律失常数据库数据读取matlab程序(MIT-BIH Arrhythmia Database matlab program to read data)

matlab three phase converter file