利用Matlab OFDM

说明：  利用Matlab编写求取4级移位寄存器的M序列 设初始序列为:1 1 1 1 通过一个四级的移位寄存器,其中在第三级有负反馈(一个模二加法),即将序列的第三位和第四位相加(如序列1 1 1 1经移位寄存器第一次移位后为0 1 1 1)的值再赋到第一位. 序列的周期为16.(The use of Matlab to prepare to strike four of the M shift register sequence based initial sequence as follows: 1 1 1 1 4 through a shift register, which in the third grade there is negative feedback (one-mode two adder), the upcoming series third and fourth combined (such as the sequence 1 1 1 1 by the shift register after the first shift for the 0 1 1 1) the value given to the first again. The cycle sequence was 16.)

An orifice, through which hydraulic fluid flows, has a specially shaped inlet and exit in an attempt to minimize losses. During tests the measured variations of mass flow rate q with pressure drop (p1-p2) across the orifice yield the data shown below. (a) From these data estimate the orifice loss coefficient c0 (b)plot the flow v.s. pressure drop curve with the estimated c0 to validate your estimation.

含有：SPWM内/外置波调速；单闭环电流截止转速负反馈；单闭环电压负反馈；单闭环交流调压调速；单闭环无静差转速负反馈；单闭环有静差转速负反馈；电压负反馈电流正反馈；开环直流；双闭环直流调速仿真(Contains: SPWM internal/external wave speed regulation; single closed-loop current cut-off speed negative feedback; single closed-loop voltage negative feedback; single closed-loop AC voltage regulation speed regulation; single closed-loop zero static error speed negative feedback; single closed-loop with static error speed negative feedback; voltage negative feedback current positive feedback; open-loop DC; double closed-loop DC speed regulation simulation)

2-d wave with cpml boundary condition

数字通信中的锁相环（PLL）完整程序，包括噪声处理，可用于GPS的的跟踪和捕获(the matlab code of PLL ,including how to deal with the noise ,which can be used to acquiring and tracking on GPS)

c4.5 algorithm in matlab

转载一个基于FCM的图像分割matlab源代码，初学者可以参考。(Reprint of an FCM-based image segmentation matlab source code, can refer to beginners.)

说明：   采用一种不完全的微分算法，被控对象为时滞系统。对象的输出端加的随机信号，幅值0.01.采样时间是20ms。(PID Controler with Partial differential)

this code is used for frequency modulation in matlab

这是对人工蜂群算法加了加速策略进行的改进，称为CABC(this is a algorithm named CABC,which is improved in the fundmantal of ABC(artificial bee clonoy algorithm))