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matlab 实例100 1-32是：图形应用篇 33-66是：界面设计篇 67-84是：图形处理篇 85-100是：数值分析篇 (100 1-32 is an example matlab: graphics applications is 33-66 Part: Part 67-84 interface design is: graphics processing chapter 85-100 are: Numerical Analysis Section)

melfiltter function use for speech recognition and have mel filter bank

说明：  使用matlab软件实现fsk的调制与解调(fsk modulation and demodulation)

可以识别二维的条形码。读入条形码图像之后即可处理成相应的数字。但是对图像存储位置有要求，所以请按照程序前面的存储位置放置您的二维图像(Can identify the two-dimensional barcode. Reads the barcode image can be processed into a corresponding digital. But the image storage location requirements, so please be placed in accordance with the storage location of the program in front of the two-dimensional image)

说明：  This code is related to the course Digital Communications. It easily reproduces the error probability as a function of the SNR per bit for QPSK and 16-QAM systems using MATLAB

matlab绘制阵列正六边形。采用角度方法。(Draw a regular hexagon array matlab. Using the angle method.)

分数阶PID比一般PID多了2个可调参数，实现了常规PID所无法实现的控制功能，并且更精确有效(Fractional PID PID more than two adjustable parameters, and can not be achieved by the conventional PID control functions, and more accurate and efficient)

matlab量化择时模型回测代码，matlab量化择时模型回测代码(Optional model to quantify when backtesting matlab code)

说明：  这是一个含多个风电机组的分布式发电系统潮流计算(This is a power flow calculation of distributed generation system with multiple wind turbines)

将矩阵中的数据输出到EXCEL表格，共四个通道~(The matrix of the data output to the EXCEL table, a total of four channels ~)