Characterization of nonlinear systems with memory: combatting the curse of dimensionality

A. H. Nuttall; R. A. Katz; D. R. Hughes; R. M. Koch

doi:10.1117/12.2182681

23 May 2015 Characterization of nonlinear systems with memory: combatting the curse of dimensionality

A. H. Nuttall, R. A. Katz, D. R. Hughes, R. M. Koch

Proceedings Volume 9456, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security, Defense, and Law Enforcement XIV; 945619 (2015) https://doi.org/10.1117/12.2182681
Event: SPIE Defense + Security, 2015, Baltimore, MD, United States

Abstract

This study investigates laser beam propagation through an atmospheric boundary layer near the ocean surface. Objectives of this research are to ascertain feasibility limits for achieving maximum energy efficiency at extended ranges in the face of atmospheric and other distortions as the laser beam penetrates through transitional (anisotropic) and turbulent (isotropic) boundary layer regimes. Various aspects of turbulence modeling of laser beam propagation near the ocean surface are discussed including: Kolmogorov’s model of atmospheric turbulence, parameterized structure functions (e.g., velocity and temperature gradients, gradients in refractive index) and other important factors affecting near surface propagation such as humidity, aerosols, and wave slap. Various preliminary modeled propagation results are shown, and a new methodology is proposed for improving existing model estimates with new time domain measurement procedures.

Citation Download Citation

A. H. Nuttall, R. A. Katz, D. R. Hughes, and R. M. Koch "Characterization of nonlinear systems with memory: combatting the curse of dimensionality", Proc. SPIE 9456, Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security, Defense, and Law Enforcement XIV, 945619 (23 May 2015); https://doi.org/10.1117/12.2182681

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