说明：  在这个算法中，我将向你展示Minn的方法来估计时间偏移量，以及信号在AWGN信道上传输。
(In this algorithm,I will show you the Minn's method for timing offset estimation, and the signals transmit over a AWGN channel.If you want to know more,such as multipath signals or other method for OFDM timing synchronization,please contact me.Thank you for reading.)