MMC_7levels_HVDC

本程序用于仿真QPSK的解调(procedures for the simulation of the QPSK demodulator)

Quadratic interpolation search method M-file

说明：  生成涡旋光有多种方式，空间光调制，涡旋相位板，还有利用叉状光栅衍射法。此程序是叉状光栅生成程序，可以用来产生叉状光栅。(There are many ways to generate vortex light, such as spatial light modulation, vortex phase plate, and fork grating diffraction. This program is a generation program of fork grating, which can be used to generate fork grating.)

说明：  计算球形壳层纳米颗粒的散射问题，包括散射系数矩阵，消光系数，吸收系数等。源程序用Matlab编写，方便学习调试(Calculate the scattering of spherical shell nanoparticles, including the scattering coefficient matrix, extinction coefficient, absorption coefficient. Source code written using Matlab to facilitate learning debugging)

false nearest neighbor calculation on a signal as a chaotic indicator

16QAM编译码程序，在信号调制过程中是不可缺少的成分(16QAM encoding and decoding process, in the course of signal modulation is an indispensable ingredient)

一个简单的优化案例。求解下面的带有等式约束和简单的边框约束(box constraints)的优化问题： minx,y(x?1)2+(y?2)2s.t.0≤x≤3,1≤y≤4,2x+3y=5(A simple optimization case. To solve the following with equality constraints and simple edge constraint optimization problem (box constraints): Minx, y (x - 1) 2+ (Y - 2) 2s.t.0 = x = 3,1 = y = 4,2x+3y=5)

实现用systerm generation 完成fft变换。原理清晰，但是结构相对复杂，请大家认真看原理，来自日本书。(Systerm generation completed using fft transform. Principles of clarity, but the structure is relatively complex, please look carefully the principle of everybody, from the Japanese book.)

无损检测中结合时间反转的music成像算法。通过格林函数构造传递函数，对换能器所得散射信号进行处理，对损伤位置（二次波源）进行成像。(Detection music imaging algorithm combines time-reversed lossless. Passing through Green Constructor, transducer signal processing resulting scattering of damage location (secondary wave source) for imaging.)

计算超声波入射到介质中，与缺陷作用时，其纵波衍射与横波衍射的衍射系数(When calculating the ultrasonic incident to the media, and defects, its longitudinal wave diffraction and the diffraction coefficient of the shear wave diffraction)