Wave-equation traveltime inversion: Comparison of three numerical optimization methods
Acoustic wave-equation traveltime inversion (WT) is tested in synthetic crosswell data. Successful inversion results can be attained from a uniform initial model. Three numerical optimization methods are compared in the WT. The limited-memory BFGS shows better convergence rate than the steepest descent and the conjugate gradient.
wave-equation traveltime inversion steepest descent method conjugate gradient method l-bfgs method