Scintillation quantification during the VAMPIRA '04 field campaign

Dimitris Tsintikidis; Stephen Doss-Hammel; Mike Jablecki; Crescentia Miscisin; Ike Bendall

doi:10.1117/12.619499

18 August 2005 Scintillation quantification during the VAMPIRA '04 field campaign

Dimitris Tsintikidis, Stephen Doss-Hammel, Mike Jablecki, Crescentia Miscisin, Ike Bendall

Proceedings Volume 5891, Atmospheric Optical Modeling, Measurement, and Simulation; 589105 (2005) https://doi.org/10.1117/12.619499
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

An infrared (IR) signal propagating along a 'line-of-sight' horizontal or slant path near the earth's surface can encounter substantial perturbations. These perturbations result in refractive distortions (low-frequency modulations that can amplify or reduce a signal) and scintillation (a higher frequency fluctuation in signal intensity). Scintillation impacts the ability of IR systems to detect high-speed, sea-skimming missiles that are a serious threat to Navy assets. Scintillation is quantified by the refractive index structure parameter C_n². An opportunity to quantify scintillation occurred during the Validation Measurement for Propagation in the Infrared and Radar (VAMPIRA) field test at Surendorf, Germany, during March - April 2004. Scintillation measurements were made along a slant, near-sea surface path of about 8200 m with a transmissometer that operated in the mid-IR regime. At the same time an AMBER camera system was used to obtain images of stationary lights at the mid-IR. The purpose of this paper is to present several ways of obtaining C_n² by using either the SSC transmissometer or the AMBER imagery.

Citation Download Citation

Dimitris Tsintikidis, Stephen Doss-Hammel, Mike Jablecki, Crescentia Miscisin, and Ike Bendall "Scintillation quantification during the VAMPIRA '04 field campaign", Proc. SPIE 5891, Atmospheric Optical Modeling, Measurement, and Simulation, 589105 (18 August 2005); https://doi.org/10.1117/12.619499

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KEYWORDS

Scintillation

Modulation transfer functions

Sensors

Cameras

Lamps

Receivers

Transmitters

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