Stationary phase approximation: a modification

Leon Cohen; Patrick J. Loughlin

doi:10.1117/12.542447

21 September 2004 Stationary phase approximation: a modification

Leon Cohen, Patrick J. Loughlin

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Proceedings Volume 5426, Automatic Target Recognition XIV; (2004) https://doi.org/10.1117/12.542447
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

In dispersive wave propagation, the standard stationary phase approximation to the wave is accurate in the asymptotic regime. Typically the calculation of the stationary points is taken to depend only on the dispersion relation. We examine the effects of including the spatial phase of the initial wave as well in the calculation and show that doing so can improve the approximation.

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Leon Cohen and Patrick J. Loughlin "Stationary phase approximation: a modification", Proc. SPIE 5426, Automatic Target Recognition XIV, (21 September 2004); https://doi.org/10.1117/12.542447

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