Title
EOSTAR Pro: a flexible extensive library to assess EO sensor performance
Author
TNO Defensie en Veiligheid
van Eijk, A.M.J.
Degache, M.A.C.
de Lange, D.J.J.
Hammel, S.M.
Tsintikidis, D.S.
Contributor
Stein, K. (editor)
Gonglewski, J.D. (editor)
Publication year
2010
Abstract
The FATMOSE trial (FAlse-bay ATMOSpheric Experiment) running over a period from November 2009 to July 2010, was a continuation of the cooperation between TNO and IMT on atmospheric propagation and point target detection and identification in a maritime environment. Instruments were installed for measuring scintillation, blurring- and refraction effects over a 15.7 km path over sea. Simultaneously, a set of instruments was installed on a mid-path lighthouse for collecting local meteorological data, including scintillation, sea surface temperature and visibility. The measurements covered summer and winter conditions with a prevailing high wind speed from the South East, bringing in maritime air masses. The weather conditions included variations in the Air-Sea Temperature Difference (ASTD), that may affect the vertical temperature gradient in the atmospheric boundary layer, causing refraction effects in the lightpath. This was measured with a theodolite camera, providing absolute Angles of Arrival (AOA). Blur data were collected with a high resolution camera system with 10 bits dynamic range. Specially designed image analysis software allows determination of the atmospheric blur, while simultaneously providing information on the Scintillation Index (S.I.). This S.I. was also measured by using the Multiband Spectral Radiometer Transmissometer (MSRT). The ratio of the transmission levels of this instrument contains information on the size distribution of the aerosols along the path. In the paper, experimental details on the set-up and the instrumentation are given as well as the methods of analysis. Preliminary results are shown, including a comparison of measured blur and scintillation data with Cn2 data from the scintillometer, correlation between AOA and ASTD and comparison of transmission data with data from the visibility meter. Blur and scintillation data are compared with predictions from standard turbulence model predictions, using Cn2. In future studies the data will be used for validation of propagation models such as EOSTAR.
Subject
Electro-optics
Sensor performance
Target detection
TDA
Atmospheric propagation
Maritime environment
To reference this document use:
http://resolver.tudelft.nl/uuid:5bbca0be-2499-47ba-8308-7e06df228f01
DOI
https://doi.org/10.1117/12.868184
TNO identifier
425932
Publisher
SPIE, Bellingham, WA
Source
Optics in Atmospheric Propagation and Adaptive Systems XIII, 20 September 2010, Toulouse, France
Series
Proceedings of SPIE
Document type
conference paper