Abstract：Far-field wavelet is important parameter weighing up the goodness and badness of gun-array and of seismic data processing, therefore, the tool that far-field wavelet of gun-array can be real-time obtained along with gun shooting has been gradually paid attention by geophysical industry.But the demand of recording far-field wavelet can't be met when water depth is only tens meters in ultra-shallow sea area.For that reason, we have been carried experiments in Bohai bay area and recorded near-field wavelet of gun-array on the sea, then computed far-field wavelet of gun-array in the computer.The results fit well with wavelet simulated by PGS-Nucleus software system, which proved feasibility of the method and opened up possibilities for real-time obtaining far-field wavelet of gun-array.
