ex8_5

本例用matlab语言实现了4QPSK的编解码及通过awgn信道的仿真。采用蒙特卡罗仿真法，得到误码性能，绘制曲线。可用于算法研究或课程学习。(Matlab language used in this case achieved 4QPSK codec and channel through awgn simulation. Monte Carlo simulation method, the BER performance, drawing curves. Algorithm can be used for research or courses.)

说明：  在命令窗输入如下内容就得到图形了: [t,x]=ode45( godhua ,[0,10],[0,0,0,1]) subplot(131) plot(t,x(:,4)) xlabel( t ) ylabel( y ) subplot(132) plot(t,x(:,1)) xlabel( t ) ylabel( v ) subplot(133) plot(t,x(:,2)) xlabel( t ) ylabel( \theta ) (At the command window type the following content to be the graphics: [t, x] = ode45 (godhua, [0,10], [0,0,0,1]) subplot (131) plot (t, x (:, 4 )) xlabel (t) ylabel (y) subplot (132) plot (t, x (:, 1)) xlabel (t) ylabel (v) subplot (133) plot (t, x (:, 2)) xlabel ( t) ylabel (heta))

three phase rectifier

implementing laplacian

说明：  模拟三人投资策略分析，最后给出比较策略的方法(Simulation analysis of three investment strategies, the methods are given comparative strategy)

辅助粒子滤波程序，是对粒子滤波程序的改进(Auxiliary particle filter program, the program is to improved particle filter)

利用系统辨识的方法，根据传感器实际输出和理想等效系统的输出，来辨识补偿环节的模型(use of the system identification method, in accordance with the actual sensor output and ideal equivalent system output Identification link compensation to the model)

matlab调用c++的创建和调试，mex函数的运用(the creation and debugging of mex function use matlab call c++)

光子晶体带隙结构, 以及有限周期情况下能谱不连续性的情况(Photonic band gap structure, and the case of a limited period photonic crystals energy spectrum of discontinuity . )

这是收集的关于matlab 和dos中的很多命令查询，方便我们使用matlab和dos 系统。(This is a collection of matlab and many dos commands in the query, we use the matlab and easy dos system.)