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this simulink model shows the linear voltage regulator in the closed loop and plot the charateristic plot of the same Matlab simulink model

optimization program

代码为QPSK半分析方法计算误码率，下载后直接运行就行了(code for QPSK semi-analytic method BER, downloaded directly running on the line)

LC 低通巴特沃斯无源滤波器设计 根据给出的参数值自动计算LC 取值(Butterworth passive LC low-pass filter design parameters according to the given value automatically calculated LC)

说明：  若锗中含有一定数量的杂质元素Sb，试根据要求分析杂质浓度与电离度以及电离温度之间的关系： （1）当Sb浓度分别为 和 时，计算杂质99％，90％和50％电离时的温度各为多少？ （2）根据一定杂质类型和杂质浓度，画出电离度和温度的关系图线，并确定半导体处于强电离区（电离度>90％）的温度范围。 设计要求：（1）具有友好输入输出界面； （2）调整输入数据，得出相应结果，并进行分析。 (If the germanium containing a certain number of impurity elements Sb, test analysis in accordance with the requirements of impurity concentration and ionization degree, as well as the relationship between the ionization temperature: (1) When the Sb concentration and time were calculated 99 percent of impurities, 90 and 50 ionization When the temperature of each number? (2) according to certain types of impurities and impurity concentration, ionization degree and temperature to draw the relationship between the graph lines, and to determine the semiconductor in a strong ionization zone (ionization degree)

实现了PWM整流的功能，并网闭环控制，稳定直流电压。(The function of PWM rectifier is realized, and the closed loop control is connected to the grid, and the DC voltage is stabilized.)

三麦克风阵列，近场定位程序，采用TDOA方法，其中延时计算采用GCC方法(three mic array，nearfield location，adopt TDOA algorithm and use GCC to calculate Time Delay)

进行图像边缘检测的程序，学图像处理的会有很大帮助(Image edge detection procedure, learning image processing would be of considerable help)

Symmetry, probability, and recognition in face space

利用matlab归一化算法提取边缘后配准目标图像，并能框出目标物(get edge )