中文说明：这是一个基于OFDM 的调制，其中子载波是16QAM，比较通俗易懂，我自己看了一天多，完全搞懂，适合学习OFDM的人，里面思路比较清晰，帮助读者更深入的了解OFDM技术
English Description：
This is one based on OFDM modulation, in which subcarrier 16QAM, more accessibly, I see more than a day, to fully appreciate, man for OFDM, ideas clear, helps the reader a better understanding of OFDM technology