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Imaging simulation of active EO-camera

: Pérez, José; Repasi, Endre


Holst, G.C. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXIX : 17-18 April 2018, Orlando, Florida, United States
Bellingham, WA: SPIE, 2018 (Proceedings of SPIE 10625)
ISBN: 978-1-5106-1761-2
ISBN: 978-1-5106-1762-9
Paper 106250I, 12 S.
Conference "Infrared Imaging Systems - Design, Analysis, Modeling, and Testing" <29, 2018, Orlando/Fla.>
Fraunhofer IOSB ()

A modeling scheme for active imaging through atmospheric turbulence is presented. The model consists of two parts: In the first part, the illumination laser beam is propagated to a target that is described by its reflectance properties, using the well-known split-step Fourier method for wave propagation. In the second part, the reflected intensity distribution imaged on a camera is computed using an empirical model developed for passive imaging through atmospheric turbulence. The split-step Fourier method requires carefully chosen simulation parameters. These simulation requirements together with the need to produce dynamic scenes with a large number of frames led us to implement the model on GPU. Validation of this implementation is shown for two different metrics. This model is well suited for Gated-Viewing applications. Examples of imaging simulation results are presented here.