moneydemo

Capon提出MVDR（Minimum Variance Distortionless Response）高分辩方位估计方法以来，MVDR以其简单的算法、良好的性能得到了广泛关注，是一种具有良好实用前景的数字波束形成方法。(Capon proposed MVDR (Minimum Variance Distortionless Response) high resolution DOA estimation methods since, MVDR algorithm with its easy, good performance has been widespread public concern, is a good practical prospect of digital beamforming methods.)

时间长度一秒，频域99 功率最集中的几种滤波器比较(Comparison of several filter in one second.)

三种实现方式，采用MATLAB编程语言，一种是法国研究者设计的G Rilling 2007 另一种是MATLAB文件交换中心由Alan Tan开发的plot_hht程序包，第三种是台湾中央大学数据研究中心提供的EEMD包。 其中，我使用了plot_hht程序包，其使用了三个终止条件，驻留分量的单调性，极值点与零点的个数相差不超过1，还有黄锷1998经典文献提出的 SD>0.1，单调性的判断，并不是去判定驻留分量是否是单调函数，而是当曲线是双曲线时，循环结束，由于没有考虑端点效应，程序比较简洁，好读懂，大家 学习HHT可以从这个程序包入手，在此抛砖引玉，希冀有人能比较这三种不同的算法的性能和时间复杂度，以及对各种信号的适应性。(3 of hht method)

20元等间隔线阵的波束形成程序，用乘机定理等效成三个阵(20 interval linear array of beam-forming process, with opportunity for the equivalent theorem into three array)

用maple和Mathematica解偏微分方程(Solving Nonlinear Partial Differential.Equations with maple and Mathematica)

In the following figure is a system of two water tanks. Mass flow into the top tank at a fixed rate q0 and exits this tank through an orifice of area A1. This exit water then flows into a second tank which has an orifice of area A2 at its bottom. Each tank has constant cross section of area A, with A>>A1,A2. (a) Determine the ODE model which governs the heights z1 and z2 of water in the system. (b) Determine the equilibrium given a fixed rate q0. (c) Linearize the system model about the equilibrium. (d) Compare the step responses of the nonlinear model and linearized model by choosing reasonable system parameters. ( (b) Plot the flow v.s. pressure drop curve with the estimated c to validate your estimation

实现典型相关分析，电力系统暂态稳定程序，可以进行暂态稳定计算,IMC-PID是利用内模控制原理来对PID参数进行计算。( Achieve canonical correlation analysis, Power System Transient Stability Program, can be transient stability, The IMC- PID is using the internal model control principle for PID parameters is calculated.)

简要说明了matlab中simulink模块的使用方法。(Briefly describe the matlab simulink module in use.)

mimo系统基本仿真 mse算法下错误率最小(mimo system)

计算曲柄滑块的matlab程序，可以运行，机械学基础上机课(Calculation of crank slider matlab program)