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数字滤波的例子，巴特沃斯与切比雪夫的横向和纵向对比，及阶数分析(Digital filter example, Butterworth and Chebyshev comparison of horizontal and vertical, and the order of)

使用matlab软件，用欧拉方法求解微分方程组！！！！！！！(use matlab to solve mathematical problem)

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)

一个比较典型的PID处理程序，在使用单片机作为控制cpu时，请稍作简化，具体的PID 参数必须由具体对象通过实验确定。由于单片机的处理速度和ram资源的限制，一般不采用浮点数运算， 而将所有参数全部用整数，运算到最后再除以一个2的N次方数据（相当于移位），作类似定点数运算，可 大大提高运算速度，根据控制精度的不同要求，当精度要求很高时，注意保留移位引起的“余数”，做好余 数补偿。这个程序只是一般常用pid算法的基本架构，没有包含输入输出处理部分。 (A typical PID process, using the microcontroller as a control cpu, make some simplification, the specific PID parameters must be determined experimentally by a specific object. As the chip processing speed and ram resource constraints, generally do not use floating-point operations, and all parameters of all integers, and divided by an operator to the last N-th power of 2 data (the equivalent of the shift) for a similar fixed-point operations, can greatly improve the speed of operation, according to the different requirements of precision control, when high precision, attention to retain the shift caused by the " remainder" and on the remainder of compensation. This procedure is commonly used basic structure pid algorithm, does not include input and output processing section.)

移动Memo控件内的字体，可以控制移动速度。(Memo to move within the control font, you can control the movement speed.)

三相PLL锁相环的闭环系统仿真模型，仿真并分析三相输入信号包含谐波、不平衡、负序和直流偏移时锁相环的锁相结果(Closed-loop system simulation model of three-phase PLL phase-locked loop,Simulation and analysis of phase-locked loop results when three-phase input signals include harmonics, unbalance, negative sequence and DC offset)

这是求分形关联维数的另一个ＭＡＴＬＡＢ程序，希望对大家有用(This is for the fractal correlation dimension, another MATLAB program, and they hope U.S. Useful)

MPU6050读取数据程序，可以直接使用(MPU6050 program reads the data can be used directly)

用于计算互近似熵，互近似熵是两个信号之间不同步的量度。模糊熵与互信息(It is used to calculate the mutual approximate entropy, and the mutual approximate entropy is a measure of the non synchronization between the two signals)

说明：  Matlab 教程 第8章 全部第8章(matlab notes chapter 8(all))