On the basis of calculating OFDM modulation parameters and frequency band suitable for elastic wave through-the-earth transition, subcarrier intervals are figured out and the elastic wave frequency band is divided into ten subcarriers. 根据前面算出的OFDM调制参数和弹性波适合透地传输的频段,计算出子载波间隔,并在弹性波频段内划分了10个子载波。