Laser propagation in heterogeneous media and applications to off-axis reconstructions
Abstract
Laser source detection is extremely important in modern military applications, as laser assisted weapons play an ever increasing role in the modern warfare. Effective counter-measures can only be created if one can develop stable techniques for the reconstruction of both the direction of the laser propagation and the location of its original source. This is difficult as one can usually rely only on off-axis measurements.This proposal aims to address two major difficulties in theoff-axis reconstruction problem. The first one is a careful modeling of the inverse problem, which concerns the reconstruction of the source structure from the available measurements. For various plausible models for laser propagation in turbid atmospheres, we will investigate which parameters of the source may or may not be reconstructed from the available measurements, and how stable the reconstructions are with respect to the noise measurements.The second diffi?culty concerns the forward modeling of the beam. Since lasers aretypically high-intensity in many applications, non-linear models of wave propagation in turbid (random) atmospheres need to be considered. We will apply and generalize the methods developed by the PIs to obtain executive models that are both sufficiently rich to
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jan 04, 2017
- Source ID
- N000141712096
Entities
People
- Guillaume Bal
Organizations
- Office of Naval Research
- Trustees of Columbia University in the City of New York
- United States Navy