Matlab--commands

说明：  matlab程序，可以完成图片格式=的转换(matlab program, you can complete the picture format = conversion)

根据OFDM的工作原理，由MATLAB编程实现，在Optiwave软件环境中，生成MATLAB模块，搭建出最基本的OFDM平台； 生成OFDM的调制和解调功能模块； 搭建传输速率为2.5G/s、传输距离为50km的光纤通讯系统，通过误码仪和示波器检测系统性能。 (According to the working principle of OFDM, the MATLAB programming, the Optiwave software environment to generate MATLAB module to build a basic OFDM platform generated OFDM modulation and demodulation modules build a transmission rate of 2.5G/s, transmission distance 50km of optical fiber communication system, through error performance analyzer and oscilloscope.)

Model of electric drive with DC machine controlled in closed loop

My program designs some kinda FIR filters. It is applicable and useful.It has graphic shows.

In MATLAB, usually we use function bvp4c() to solve boundary value problem (BVP) of ODE. However, we also can use function ode45() to solve BVP of ODE too. However, ode45() needs all initial values at one point. Therefore we have to construct an auxiliary function, whose input argument is the missing initial value and the return output is the given boundary value, Then we can call function fsolve() to get the missing initial value. This method is particularly efficient it the ODE has one or more parameters. Also this method is essentilal for GNU Octave, because whose function bvp4c() is not programmed for parameter ODE yet.

main cal use add

介绍了matlab的通信工具箱的所有函数 以及如何使用 matlab通信工具箱(MATLAB communication toolbox functions and how to use Matlab communication toolbox)

We see that HTH matrix is almost diagonal as the off diagonal elements are nearly zero. So we are getting exact estimation in case of PRN INPUT due to diagonality of HTH matrix. As seen that the unknown inpulse response ( h ) and estimated impulse response ( hth ) are coming out to be exactly same. The estimation even gets better for large N .as we get the HTH matrix perfect diagonal. So we come to know that we can estimate the unknown parameters exactly when PRN input is used.

16 QAM digital communication system

说明：  应用music算法和esprit算法在进行谱估计中的matlab源程序 (Music and esprit algorithm application in spectral estimation algorithm in the matlab source code)