搭建OFDM通信系统的框架，结合PCA的尺度不变特征变换(SIFT)算法，单径或多径瑞利衰落信道仿真，MIMO OFDM matlab仿真,仿真效果非常好。- Build a fr a mework OFDM communication system, Combined with PCA scale invariant feature transform (SIFT) algorithm, Single path or multipath Rayleigh fading channel simu