Effect of sweep parameters on correlation wavelet

Abstract

Vibroseis is a different seismic method, whose main parameter is varying with rock layers deep in the earth. Vibroseis data is extremely useful a method in seismic acquisition for controlling the frequency range of seismic data. The vibrator is a controlled energy source employed in seismic methods. It is now the principal source for land seismic exploration. Suitable input signal is typically a sinusoid that changes frequency within a bandwidth. To obtain high-quality subsurface images, amplitude of the sweep signal and amplitude of Klauder wavelet, as for as S/N ratio is important parameters. In this study, amplitude of Klauder wavelet variations with respect to different sweep parameters are investigated; tests have been made based on a variety of sweep numbers, sweep length, peak force ratio and sweep bandwidth and results have been compared with theoretical values. They have evaluated in the shot and process domain.