很不错的pwm整流器的建模仿真集合程序

说明：  3D分形维数计算，Box-counting算法和MinkowskiMethod算法(Fractal dimension,Box-counting and MinkowskiMethod)

用Matlab程序求解pde问题，同时显示解的图形(Solving pde problems with the Matlab program, also shows a graphical solution)

可实现答题卡阅卷系统中的图像倾斜矫正，采用Hough进行直线检测，并根据所定位的特征直线位置计算倾斜角度，再进行图像旋转，得到校正结果(chieve answer sheet scoring system image tilt correction, performed using Hough line detection, and calculates the inclination angle in accordance with the target characteristic linear position, then rotate the image, corrected results)

在信号处理中，信号发射时，信号通过载波，调制，以电磁波的形式发射出来 在接收端，射频信号通过天线接收，超外差式等方式进行处理，变频到中频 然后通过数字技术对中频信号进行处理，此时的中频信号采样率很高，多达几十兆赫 而要解调出来的信号很小，此时就要经过滤波来得到我们需要的信号 如果直接设计滤波器，阶数会非常庞大，软件，硬件设备都承受不了 因此，一般常用的技术是进行下变频处理，其主要技术就是通过抽取滤波进行下变频 常用的滤波器就是CIC抽取, 希望可以帮助一些坛友解决基本的问题。 (In signal processing, signal emission, signal through the carrier, in the form of electromagnetic wave modulation, launched In the receiver, rf signals through the antenna, specialized superheterodyne type means such as processing, the frequency conversion to intermediate frequency Then through digital technology of intermediate frequency signal processing, at this time of intermediate frequency signal sampling rate is very high, as many as several decades MHZ But the signal demodulation out is very small, at this time would be passing filter to get what we need signal If design directly filter, order number be colossal, software, hardware equipment all suffer Therefore, the technology is usually used for down-transducer processing, its main technical is by extracting filtering down-transducer Commonly used filter is CIC extraction, the hope can help some friends solve basic problems of the altar.)

手形识别中采用肤色分割的算法，进行手形区域的提取，输出手形区域。(Hand-shape recognition algorithm using color segmentation, hand-shaped region extraction, hand-shaped area of the output)

THis code removes the object shadow

无失真传输的GUI程序可以调节无失真传输的各个参数(Non-distorted transmission GUI program can adjust the various parameters of the lossless transmission)

求解出在最小均方误差滤波器单位冲激函数h(n)。求解过程需要通过利用循环嵌套的编程思想，比较在逐次增加滤波器阶数的过程中得到的最小均方误差与最初设定的最小均方误差的阈值，当达到要求时，可以进一步确定滤波器的阶数。(how to use this function: [hx,hy]=wiener_ch2(w,N) )

THI SM FILR CONVER FTROM ABC TO DQ0 IN ORDER TO DEMOSTRATE HOW TO USE THE MATLAB GUI AND SIMULINK

量子阱红外探测器用双周期衍射光栅，光栅图形，光强分布等用matlab程序(Quantum well infrared detectors using double period of the diffraction grating, grating pattern, the light intensity distribution program with matlab)