0QPSK_Simulink

ofdm基于循环前缀的同步算法，很实用，调试通过了的(ofdm synchronization algorithm based on cyclic prefix)

说明：  二维平平腔激光振荡，采用菲涅尔衍射和fox-li方法，得到两维幅度和相位输出。(Flat two-dimensional oscillating cavity laser using Fresnel diffraction and the method of fox-li, the two-dimensional amplitude and phase output.)

说明：  costas环matlab仿真程序，用于载波恢复，能够达到很好的效果。(matlab simulation program costas loop for carrier recovery, to achieve good results.)

Matlab与C-C++语言混合编程的几种方法(Matlab and C-C++ programming language mixing several methods)

FOR BETTER PROGRAMME MATLAB

潮流计算：算例为IEEE33 计算网络节点电压 (Computing network node voltage power flow calculation examples for the IEEE33)

使用MATLAB对特定信号做短时傅里叶分析的源码，修改方便(The use of MATLAB to do a specific short-time Fourier analysis of the signal source, modified to facilitate)

递推最小二乘法(RLS)及基于F-Test的模型阶次辨识，也是系统识别课上的实验。本文件包括matlab源代码以及实验报告，适合学生~(Recursive least squares (RLS) and based on F-Test of the model order identification. This document includes matlab source code and test reports for students ~)

matlab classic program, which the code is simple, powerful, video material I have

OFDM信号在无线通信中会受到多普勒频移的影响，从而影响了OFDM信号的正交性，引起载波间的干扰和OFDM信号符号间的干扰，本代码先形成含有N个二进制码元的信号，而这个信号的前半部分和后半部分的信号是一样的，然后根据把这个信号调制成OFDM信号，最后接收端根据这个OFDM信号估计出多普勒因子(OFDM signal in a wireless communication will be subject to Doppler shift of influence, thus affecting the OFDM signal orthogonality, causing interference and interference between the OFDM signal symbol between carriers, the code first formed comprising N binary symbols signal, and the first and second halves of this signal is the same signal, and then the OFDM signal according to the estimated Doppler factor modulates the signal to the OFDM signal received, the last side)