visualodo

船舶电力推进系统的电磁场时域有限差分算法(Marine electric propulsion system of electromagnetic fields finite difference time domain algorithm)

CDMA2000调制扩频与解调解扩的MATLAB仿真(CDMA2000 spread spectrum modulation and de conciliation spread MATLAB simulation)

说明：  针对Hénon map,找出其稳定点，. 以及在参数确定的情况下绘画出其分岔图，计算李雅普诺夫指数，最后做出时域图 (For Hénon map,1) Find the fixed points of periods one and two for the Hénon map. 2) Investigate the bifurcation diagrams for the Hénon map by plotting the x_n values as a function of α for β = 0.4. 3) Write a Matlab or Maple program to compute the Lyapunov exponents of the Hénon map where α=1.2 and β = 0.4. 4) Use the OGY algorithm to stabilize a point of period one in the Hénon map where α=1.2 and β = 0.4.)

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

the processing results of matlab language progaramme(for test)

基频提取程序，已经运行成功，可以直接使用。(Fundamental frequency extraction procedure has been run successfully, can be used directly.)

will be very useful for those who need code for lsb steganography

grails bookmark例子程序在2.0上的实现(grails bookmark sample in grails 2.0)

image comparison and degradation

基于matlab的golden序列生成程序，可以参考使用(Based on the matlab golden series generate program, reference may be used)