truncation_filtering

emd过程的详细演示 可以帮助刚刚接触hht的人了解 emd的过程(EMD detailed demonstration of the process can help just contact HHT people understand the process of EMD)

Optimization of a Double Wishbone Suspension System

说明：  ：针对PID参数复杂烦琐的整定过程这一问题，基于MATLAB／Simulink仿真环境，模拟工程稳 定边界法的PID参数整定策略和步骤，提出了一种简单有效的PID参数整定方法．与通常的整定方法 比较，其优点是非常直观、完全可视化操作、省去了编程的工作量．仿真结果表明该方法具有良好的收 敛性，使得控制系统动态性能得到有效改善，并且很大程度上减少了工作量．(Abstract：The process of PID parameters turning is complicated and time—consuming to engi— neering technician．To solve this problem．simulating the Z～ N method of engineering turn— ing，based on the MATLAB／simulink，a simple and eficient method for PID parameters turning is presented in this paper．Compares with the general methods，it has many advanta— ges，such as simplicity，visual manipulation，leaving out the workload of program and SO on． The simulation results show the effectiveness of this method and be fit for application in the engineering．)

MATLAB 程式设计与应用，非常好的学习者资料 (MATLAB program design and application，Good learners material)

MATLAB关于汽车制动分析 汽车理论 汽车理论 汽车理论(MATLAB analysis on the brake)

radar matlab simulation

天线方向图的波达方向，用于描述回波的方向图1，可以用于初学者学习使用(DOA antenna pattern, used to describe the echo pattern 1, can be used for beginners to learn to use)

用Ritz-Galerkin方法解边值问题： u +u=-x,0<x<1, u(0)=u(1)=0,精确解为u*(x)=sinx/sin1-x； 得出结果与精确解作比较，画出误差分析图(With the Ritz-Galerkin method to solve the boundary value problem: u' ' + u =- x, 0 <x<1, u(0)=u(1)=0,精确解为u*(x)=sinx/sin1-x； 得出结果与精确解作比较，画出误差分析图)

用来画大量样本数据的概率密度曲线，使用简单，快速。数据越多，画的效果越好。(Used to draw Probability density curve of a lot of sample data, easy to use and fast. The more data, the better the picture.)

Akkto_test This test is really unuseful akko test