利用matlab计算三维光子晶体带隙的fdtd算法

绘画出三阶的贝塞尔曲线, 求出曲线上各点的曲率和半径,可用于弯道设计(Drawing out the order of the Bezier curve, find the points on the curve and radius of curvature, can be used for curve design)

说明：   这些程序,用于模拟仿真非线性动力学的分岔,混沌等动力学行为(it s for the nonlinear dynamics phenomenon of code.)

基于粒子滤波，实现海面船只控制，滤除波动干扰，含建模和仿真，包括主程序和子程序(sea boat tracking and control based on PF)

系统辩识在matlab里的应用:输入信号的产生,多种最小二乘的辨识(system identification in the application of Matlab Lane : input signal the emergence of a variety of literacy least squares)

it includes some usefull codes in speech processing

基于光流场的交通汽车检测跟踪Traffic Vehicle Detection and Tracking Based on Optical Flow Field(Traffic Vehicle Detection and Tracking Based on Optical Flow Field)

说明：  一种基于混合策略的改进粒子群优化算法，包括执行程序hpso.m和参数设定hPSOoptions.m两个源文件。代码清晰，易于改进实现。结果显示有效的提高了SPSO的性能(A hybrid strategy based on improved particle swarm optimization algorithm, including the implementation of procedures and parameters set hpso.m two hPSOoptions.m source file. Code clear and easy to improve the achievement. The results showed that the improvement of effective performance of the SPSO)

模拟退火算法描述：          若J( Y(i+1) )>= J( Y(i) )  (即移动后得到更优解)，则总是接受该移动          若J( Y(i+1) )< J( Y(i) )  (即移动后的解比当前解要差)，则以一定的概率接受移动，而且这个概率随着时间推移逐渐降低（逐渐降低才能趋向稳定）

说明：  matlab图像处理代码,很有帮助的参考程序代码(matlab image processing code, and useful reference code)

非归零码和非归零-差分相移键控码的时域和频域分析(NRZ Non Return to Zero- the time domain and frequency domain differential phase shift keying code)