An Inverse Hyperbolic Problem with Application to Joint Photoacoustic Parameter Determination

Abstract

We consider an inverse problem of recovering a parameter appearing in all levels in a second-order hyperbolic equation from a single boundary measurement. The model is motivated from applications in photoacoustic tomography when one seeks to recover both the wave speed and the initial ultrasound pressure from a single ultrasound signal. In particular, our result shows that the ratio of the initial ultrasound pressure and the wave speed squared uniquely determines both of them respectively.

19 pages. arXiv admin note: text overlap with arXiv:2210.03865