SC_sunny_RI

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this m file is fast Fourier transform (FFT).and is an efficient algorithm to compute the discrete Fourier transform (DFT) and its inverse of recorded signal

基于MATLAB的平滑伪Wigner Ville 分布(Smooth_WignerVille)

最速下降法，用于计算机，数值方法的实现，需调试再用，谢谢大家(steepest descent method)

对动态力信号的时域特征进行提取包括谐波特征，能量特征和小波特征等(Characterized in the time domain dynamic force signal feature extraction, including harmonics, energy and wavelet characteristics)

预测控制是一种新型的控制算法之一。经典的PID控制方法简单方便,但是精度不高。近年来发展的自适应、自校正方法精度高,但其本质要求在线辨识对象模型,对过程的未建模动态和扰动的适应能力差,鲁棒性不好。预测控制方法集PID和自适应方法二者之长,是一种面向工业过程特点、对模型要求低、在线计算方便、控制精度高的算法。数字计算机向小型、高速、大容量、低成本方向的发展,为预测控制这类新算法的实现提供了物质基础。 本文以PCT—Ⅲ型过程控制系统装置为平台,将预测控制算法运用到实际系统中去,该装置分为水位系统和温度系统。本文是将多步预测控制算法运用到温度系统。应用控制软件采用北京亚控公司的组态王软件(KingView),它界面设计能力强,也可以简单编程,但计算能力差,不能进行矩阵计算。而在温度多步预测控制中,计算量大,编程复杂,因此引入Matlab软件解决计算和编程,要解决的问题是MATLAB和组态王的数据交换,采用动态数据交换技术(DDE)。 预测控制算法有多种,本文采用的是动态矩阵控制方法(DMC)。(Predictive control is one of a new control algorithm. The classic PID control method is simple, but the accuracy is not high. In recent years the development of adaptive, self-calibration method is accurate, but its object model online identification of the essential requirements of the process unmodeled dynamics and disturbances poor adaptability, robustness is not good. Prediction and adaptive PID control method sets the length of the two methods is a feature for industrial processes, low requirement on the model, online convenience of calculation, the control algorithm for high accuracy. Digital computers to small, high-speed, large capacity, lower costs of development, such as predictive control implementation of the new algorithm provides the material base. In this paper, PCT-Ⅲ type of process control system devices as a platform, the predictive control algorithm to apply to the actual system, the device is divided into water system and temperature system. This is a multi-step pre)

用matlab实习的GPS软件接收机的方法等，仅供参考。(Matlab internship with the GPS software receiver method, etc., for reference purposes only.)

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MATLAB5.3精要、编程及高级应用。分三篇，基础篇为MATLAB的基本操作和功能；中级为数值计算和编程和simulink功能；高级为深入介绍simulink系统仿真方法；与信号处理、控制系统分析、系统仿真应用结合的书籍。(MATLAB5.3 essence, programming and advanced applications. Three points, Basics of MATLAB' s basic operations and functions intermediate for the numerical computation and programming and simulink function advanced systems for in-depth introduction simulink simulation and signal processing, control system analysis, system simulation applications with the books.)

四种MATLAB时程分析方法，如中心差分法，Wilson法等，包含主程序。(time-procedure analysis)