Preliminary Investigation of Wavefield Depth Extrapolation by Two-Way Wave Equations

Figure 1

Impulse responses for a homogeneous medium with velocity of 2 km/s from source Ricker wavelet with dominant frequency 15 Hz. (a) Rung-Kutta method; (b) two-way phase-shift method (5); (c) implicit two-way phase-shift depth extrapolation by (7); (d) one-way phase-shift propagator 𝑒^{𝑖𝑘𝑧Δ𝑧}.

(a)

(b)

(c)

(d)