fdtd

已知一个LTI系统的差分方程为： y[n]-1.143*y[n-1]+0.4128*y[n-2]=0.0675*x[n]+0.1349*x[n-1]+0.0675*x[n-2] 初始条件y(-1)=1,y(-2)=2，输入x(n)=u(n)，计算系统的零输入响应 (known LTI system of a differential equation : y [n]-1.143* y [n-1] 0.4128* y [n-2] x = 0.0675* 0.1349 [n]* x [n-1] 0.0675* x [n-2] initial conditions y (1) = 1, y (2) = 2, input x (n) = u (n), we calculate the zero input response)

高级变换的fft，dft代码实现，包括结果的绘图(fft and dft realization)

自学matlab实用。自学Matlab必备的60个小程序代码(Matlab practical self-study. 60 small self-Matlab essential program code)

说明：  这是一个基于Matlab的电力系统潮流程序！(This is a Matlab-based Power Flow program!)

说明：  matlab算法练习，包括牛顿迭代法，赛德尔迭代法等(matlab learning)

能量重心校正法，进行频谱的幅值修正，算法可以参见谢明、丁康老师的频谱分析文章。(Energy center of gravity correction method, the amplitude correction of the spectrum, spectrum analysis of the algorithm can be found in Xie Ming, DING Kang teacher article.)

Test insertion of an abstract method in a superclass.

该算法实现对舰船辐射噪声的建模以及对其中线谱的提取(The algorithm modeling ship radiated noise and the extraction of its neutral spectrum)

4种启发式算法的问题的matlab程序，非常的实用(4 kinds of heuristic algorithm of the matlab program, very practical)

模糊PID控制器优化函数的文章，很不错的，很有参考价值，是英文版的可以作为参考资料。(Fuzzy PID controller optimization function article, very good, good reference is the English version can be used as reference.)