一个4*4mimo通信系统的仿真，qpsk调制，用mmse自适应解调，画出了ber曲线-A 4* 4mimo communication system simulation, qpsk modulation and demodulation with adaptive mmse, draw a curve ber

这是基于MIMO-OFDM的同步算法研究的源程序。本程序采用的极大似然估计的方法。-This is based on MIMO-OFDM synchronization algorithm source code. The program uses the method of maximum likelihood estimates.

可直接计算得到多重分形谱,MIMO OFDM matlab仿真,最小均方误差（MMSE）的算法。- It can be directly calculated multi-fractal spectrum, MIMO OFDM matlab simulation, Minimum mean square error (MMSE) algorithm.

主要实现了接收天线数量和发送天线数量可配的mimo系统多用户检测，分别采用ML，MMSE，ZF检测方法，得到性能比较曲线。(The multi-user detection of mimo system with the number of receiving antennas and the number of transmitting antennas is mainly realized. The performance comparison curve is obtained by us