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小波多层分解单层重构程序，对非平稳时间序列进行多尺度分解，然后进行单层重构。(Wavelet decomposition multilayer single reconstruction program, for non-stationary time series multiscale decomposition, and then single-remodeling.)

信号与系统中的LTI线性非时变系统的程式例题，将作业题目写成MATLAB程式进行模拟与判断。(Signals and systems in the LTI LTI system programming examples, job title will be written in MATLAB programming for simulation and judgments.)

说明：  matlab编程引擎(matlab programming engine)

基于matlab的二阶微分动力学的智能体flocking数值模拟，其中每个智能体的动力学用微分方程来描述，给出每个个体组后的最后位置与运动方向。(a matlab code for second-order differential multi-agent flocking simulation, each agent s dynamics is described by using differential equation. it gives the figure of all agents position and velocities.)

本文件为《matlab有限元结构动力学分析与工程应用》一书对应的全部源文件文件(This document is the " matlab finite element structural dynamics analysis and engineering application," a book of all the source files corresponding to)

OFDM WITH RAYLIEGH FADING

对流扩散方程的Crank-Nicolson差分格式程序(Crank-Nicolson difference scheme of the convection-diffusion equation program)

信号信噪比计算，验证对比了matlab中的多种信噪比计算方法(compare the calculation of SNR )

研究了汽车制动过程中车速、轮速等的变化过程和影响因素；以化整为零的思想，研究得到制动过程中各物理量间的微分方程关系；进而建立在ABS下的数学模型；继而通过使用simulink建立仿真模型；采取逻辑门限的控制方法，综合仿真的整个动态变化过程；得到车速、轮速、滑移率、路面附着系数和制动距离随时间的变化曲线；最后利用图像分析的方法对各物理量进行分析、比较，对比有无ABS系统下制动距离的变化，得出使用ABS控制策略能显著缩短制动距离，提高制动安全性。数据分析和处理主要应用MATLAB软件。(The braking dynamics model of quarter vehicle ABS is established. It simulates the dynamic behavior of a vehicle under hard braking conditions. We researched the change of the vehicle speed and wheel speed during the vehicle braking. According to Newton s first and second law, then dfferential equations are obtained, so we get the Mathematical model. Next the response of the system is simulated by using Simulink in MATLAB . Based on the logic threshold control, we get the curve that Speed, wheel speed, slip ratio and road adhesion coefficient and brake distance changes over time. Contrasting with ABS or without ABS , using the ABS control strategy can significantly shorten the braking distance. Data analysis and processing mainly used MATLAB software.)

这是一个高频滤波程序，采用的是两种方法分别实现(This is a high-frequency filtering process, using two methods, respectively, to achieve)