yiqunsuanfa

Introduction Fiber-to-the-Premises solutions today vary from high-bandwidth, symmetrical and dedicated fiber Ethernet-to-the- Home (ETTH), to traditional TDM PON, such as Gigabit PON (GPON), solutions that are asymmetrical, share bandwidth among users and are not flexible nor scalable to address various residential requirements and enterprises in one infrastructure.

matlab编写的mimo仿真平台，用于OFDM-mimo仿真(matlab MIMO simulation platform prepared for the simulation of OFDM-mimo)

电力系统PQ潮流计算 基于直角坐标 注意输入数据文档的格式(PQ power system power flow calculation based on a Cartesian coordinate attention to the format of input data files)

基于高阶循环累积量的SQAM信号调制识别算法(Order cyclic cumulant based modulation recognition algorithm SQAM)

说明：  坐标转换：已知n个点在a,b两坐标系中的坐标值，采用优化方法求转换关系（标准的7参数转换关系，x,y,z的移动，x,y,z的旋转，以及缩放系数）ps:附带空间旋转公式。input: points in A and B。 output：transfer relationship （u,v,w: shit of x,y,z。 a,b,g: rotate of x,y,z 。k：zoom）(Coordinate Transfer:A,B are tow coordinates. This program using optimal method to find the transfer relationship of A and B. input: points in A and B。 output：transfer relationship （u,v,w: shit of x,y,z。 a,b,g: rotate of x,y,z 。k：zoom） )

说明：  加强环的应力和位移计算程序,可以求出每隔5度位置处圆环的应力\弯矩和位移.(strengthen the stress and displacement calculation procedures, we can solve every 5 degrees positions of the stress Circle \ moment and displacement.)

this program showing us the process of image enhancement

空气中声传播的fdtd例程，简单可用，希望对大家有帮助(Fdtd airborne sound propagation routines, simply available, we hope to help)

说明：  Brain Brain-State State-in in-a-Box (BSB) Neural Network. Here a BSB neural network is implemented. It is an autoassociative memory.

this algorithm describes how to take fast fourier transform in matlab