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This file is m-file about Implicit BPM for directional coupler waveguide.

matlab建模与仿真 比较经典的一本书(Comparison of modeling and simulation matlab classic book)

在某初教机的线性模型基础上，建立了飞机的纵向和横向传递函数，分析了模型参数的不确定性，通过使用MATLAB中的NCD模块对飞行控制系统及PID控制器等参数进行优化，设计出了飞机的自动驾驶仪高度保持和航向保持模式。这种方法既避免了复杂的计算和编程，又使系统具有较好的稳定，陛、动态性能和鲁棒性，克服了飞机模型参数随着高度和速度的变化（即模型参数存在不确定性）而需要按照多个不同高度和速度的飞行区域设计一系列控制器的缺点(early in a plane of the linear model, based on the aircraft's vertical and horizontal transfer function, Analysis of the model parameters of uncertainty, MATLAB through the use of the NCD Blocks flight control system and PID controller parameters for optimization, design of the aircraft's automatic pilot systems, and maintain a high degree course-keeping mode. This method not only avoids the complex calculation and programming, the system has good stability, Her Majesty, dynamic performance and robustness. overcome the aircraft model parameters with the height and speed of change (that model parameters uncertainty exists) and the need to not more than with the height and speed of regional flight controller design a series of shortcomings)

This system models a double pendulum system where the rest state has the pendulums balanced to hang at right angles to one another.

两阶段DEA模型的matlab程序源码，可以用来计算效率，完全傻瓜式操作。(Two-stage DEA model matlab program source code, can be used to calculate the efficiency, completely fool-type operation.)

使用有限差分法和分裂步傅里叶解法求解抛物方程，并增加散射体和地形的建模仿真。(Using the finite difference method and the split-step Fourier solution for solving the parabolic equation, and increase the scatterer and terrain modeling and simulation.)

MATLAB 程式设计，MATLAB基本运算 MATLAB基本平面绘图 MATLAB基本立体绘图 (MATLAB programming, MATLAB basic computing basic plane MATLAB basic three-dimensional graphics MATLAB graphics)

产生一个连续信号，包含低频，中频，高频分量，对其进行采样，进行频谱分析，分别设计低通，带通，高通滤波器对信号进行滤波处理，观察滤波前后信号的频谱。(Generates a continuous signal, including low-frequency, medium frequency, high frequency components, its sampling, spectral analysis, were designed low-pass, band pass, high pass filter for filtering the signal, observed before and after filtering the signal spectrum.)

matlab code for rayleighn fading

基于免疫网络模型的免疫算法源程序，MATLAB编程，仅供大家参考(based on the immune network model immune algorithm source code and MATLAB programming, is for your reference)