3_1_1sigmoi

机器人PID控制重要程序，内含控制率设计，重力补偿等(PID control program of robot)

全通滤波器的matlab设计，实现相位偏移(All-pass filter matlab design phase offset)

系统辨识的最小二乘辨识法，能辨识传递函数(Least squares identification system identification method can identify the transfer function)

基于matlab的维纳滤波器基于matlab的维纳滤波器基于matlab的维纳滤波器基于matlab的维纳滤波器基于matlab的维纳滤波器(based on matlab winear filter)

说明：  本章的内容更深入MATLAB可视化功能的内核。编写本章的目的有两个：一，使读者更深入地理解高层绘图指令，从而可绘制出更精细更生动更个性的图形；二，使读者能利用低层图形指令和图形对象属性开发专用绘图函数(This chapter more in-depth visualization of the core MATLAB. The purpose of the preparation of this chapter, there are two: First, make readers more in-depth understanding of high-level graphics commands, which can draw out the finer more vivid and personalized graphics 2, so that readers can use low-level graphics commands and graphics object properties developed special drawing functions)

可以用这份代码做粒子滤波，效果还行，这个是无迹的算法(This code can be used for particle filtering.)

FastICA算法，又称固定点(Fixed-Point)算法，是由芬兰赫尔辛基大学Hyvä rinen等人提出来的。是一种快速寻优迭代算法，与普通的神经网络算法不同的是这种算法采用了批处理的方式，即在每一步迭代中有大量的样本数据参与运算。(FastICA algorithm, also known as fixed-point (Fixed-Point) algorithm, University of Helsinki, Finland by Hyvä rinen et al put forward. Is a fast iterative optimization algorithm, with the ordinary neural network algorithm is different from the algorithm used in batch mode, that is, in every iteration step in a large number of samples involved in computing the data.)

十进制转化为二进制 m代码 很精简的一个代码，十六位二进制转化都十分迅速(Decimal into binary m code very concise code, very fast 16-bit binary conversion)

this code is a generalized form of newton raphson method for finding the power flow in an interconnected system. it is by default designed for 3 bus system bus system it can also be changed for other type of system.

设计一个阻带下限0.45*pi 阻带上限0.8*pi 通带下限0.55*pi 阻带上限0.7*pi 通带衰减0.15dB，阻带衰减40dB，分别用汉宁窗汉明窗凯瑟窗布莱克曼窗设计滤波器，对比分析各方法优劣(Design a stop-band limit 0.45* pi stopband limit 0.8* pi Passband lower limit 0.55* pi stopband limit 0.7* pi Passband attenuation 0.15dB, stop-band attenuation of 40dB, respectively Hanning Hamming window Kaiser window Blackman window filter design, comparative analysis of the pros and cons of each method)