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Proceedings Paper

Common aperture multispectral spotter camera: Spectro XR
Author(s): Vladimir Petrushevsky; Dov Freiman; Idan Diamant; Shira Giladi; Maor Leibovich
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Paper Abstract

The Spectro XRTM is an advanced color/NIR/SWIR/MWIR 16’’ payload recently developed by Elbit Systems / ELOP. The payload’s primary sensor is a spotter camera with common 7’’ aperture. The sensor suite includes also MWIR zoom, EO zoom, laser designator or rangefinder, laser pointer / illuminator and laser spot tracker. Rigid structure, vibration damping and 4-axes gimbals enable high level of line-of-sight stabilization. The payload’s list of features include multi-target video tracker, precise boresight, strap-on IMU, embedded moving map, geodetic calculations suite, and image fusion.

The paper describes main technical characteristics of the spotter camera. Visible-quality, all-metal front catadioptric telescope maintains optical performance in wide range of environmental conditions. High-efficiency coatings separate the incoming light into EO, SWIR and MWIR band channels. Both EO and SWIR bands have dual FOV and 3 spectral filters each. Several variants of focal plane array formats are supported.

The common aperture design facilitates superior DRI performance in EO and SWIR, in comparison to the conventionally configured payloads. Special spectral calibration and color correction extend the effective range of color imaging. An advanced CMOS FPA and low F-number of the optics facilitate low light performance. SWIR band provides further atmospheric penetration, as well as see-spot capability at especially long ranges, due to asynchronous pulse detection. MWIR band has good sharpness in the entire field-of-view and (with full HD FPA) delivers amount of detail far exceeding one of VGA-equipped FLIRs.

The Spectro XR offers level of performance typically associated with larger and heavier payloads.

Paper Details

Date Published: 6 October 2017
PDF: 7 pages
Proc. SPIE 10433, Electro-Optical and Infrared Systems: Technology and Applications XIV, 1043315 (6 October 2017); doi: 10.1117/12.2275356
Show Author Affiliations
Vladimir Petrushevsky, Elbit Systems Electro-Optics El-Op Ltd. (Israel)
Dov Freiman, Elbit Systems Electro-Optics El-Op Ltd. (Israel)
Idan Diamant, Elbit Systems Electro-Optics El-Op Ltd. (Israel)
Shira Giladi, Elbit Systems Electro-Optics El-Op Ltd. (Israel)
Maor Leibovich, Elbit Systems Electro-Optics El-Op Ltd. (Israel)

Published in SPIE Proceedings Vol. 10433:
Electro-Optical and Infrared Systems: Technology and Applications XIV
David A. Huckridge; Reinhard Ebert; Helge Bürsing, Editor(s)

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