communicationsystems

锁相环相关知识，包含二阶 三阶 锁相环的介绍以及编程实例汇总(Phase-locked-related knowledge, presentation and programming examples included 2nd and 3rd order PLL summary)

用双线性变换法设计原型低通为椭圆型的数字IIR带通滤波器 (Prototype using the bilinear transformation method for the elliptic low-pass digital IIR band pass filter)

说明：  研究多帧图像超分辨复原算法中参考帧和参与复原图像帧数据集的选取问题(Selection of reference frame and the considering frames is investigating for multi-frame super-resolution restoration.)

Realiza o cisalhamento na imagem.

模式搜索法源程序。模式搜索方法是求解最优化问题的一种直接搜索方法,它不用目标函数与约束函数的导数信息而只用函数值信息,是求解不可导或求导代价较大的最优化问题的一种有效方法。(Source model search. Pattern search method for solving optimization problems is a direct search method, it should not be the objective function and constraint function information of the derivative function only information is the solution of non-derivative or derivative of the cost of a larger optimization problem of a effective way.)

基于matleb的数值建模优化算法全集，数值建模必备资料(matlab-multi-objective optimization algorithm pdf)

Lamb波的频散曲线是进行超声Lamb波无损检测的重要依据。本程序对Rayleigh2Lamb方程进行了分析,给出了板中Lamb波频散曲线的数值计算方法,通过Matlab软件对求解过程进行编程,绘制出Lamb波在铝板中传播的相速度和群速度曲线,对推广应用Lamb波进行无损检测具有实际意义。(dispersion curve of lamb)

添加了滤波环节、去直流环节并且用了SVD－TLS算法改进后的Prony算法(Add a filter link, go to the DC link and use the SVD-TLS algorithm improved Prony algorithm)

matlab中gui界面编程，timer的一个小例子，实时显示系统时间。(programming in matlab gui interface, timer, a small example, real-time display system time.)

this file contain model of induction motor with WPM