Circle-detection-

matlab标定箱即标定要用的图片，主要是用于立体标定，图像对有40张，能得到很好的标定结果。(matlab calibration box that is calibrated to use the picture, mainly for three-dimensional calibration, the image of a 40, can get good calibration results.)

Function to plot uncertainty 3-sigma ellipse in matlab

DOA估计的经典算法：music算法基本程序实现(music algorithm)

三相直交直流变换器，PWM (ThreePhase_ACDCAC_PMWconverter )

matlab 基本语句描述，及一些基本内部函数，很有用的，欢迎共享，谢谢(Differential evolution algorithm is very popular in recentyears, it iswidely used in complex optimi- zation questionsbecause of it’s easy implementation and has less controlparameters. Butconventionaldifferen- tial evolution algorithm has a problem ofstagnation thatcan stop the algorithm convergence. )

说明：  频域的模态参数识别方法之一，可以对振动信号进行分析处理，得出结构的固有频率，阻尼比，振型系数，方法很好，程序完整，(Frequency-domain modal parameter identification methods that can analyze the vibration signal processing, draw the structure of natural frequencies, damping ratio, mode shape coefficient, very good method, program integrity,)

说明：  matlab中的傅里叶变换，线性卷积，循环卷积，在基带等效信号加高斯白噪声信道模型下，BPSK,QPSK,QAM等调制解调的误码率计算。(Do not call any function in the case, resulting in [0,1]uniform distribution of interval random variable matlab program.)

Automatic detection of eyes,nose and mouth in an image using inbuilt matlab functions

this code conveys the pcm encoding and decoding

对fluent默认的Syamlal drag law进行曳力修正，多相流模型中(drag modify model in fluent)