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Proceedings Paper

Airborne test results for smart pushbroom imaging system with optoelectronic image correction
Author(s): Valerij Tchernykh; Serguei Dyblenko; Klaus Janschek; Klaus Seifart; Bernd Harnisch
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Paper Abstract

Smart pushbroom imaging system (SMARTSCAN) solves the problem of image correction for satellite pushbroom cameras which are disturbed by satellite attitude instability effects. Satellite cameras with linear sensors are particularly sensitive to attitude errors, which cause considerable image distortions. A novel solution of distortions correction is presented, which is based on the real-time recording of the image motion in the focal plane of the satellite camera. This allows using such smart pushbroom cameras (multi-/hyperspectral) even on moderately stabilised satellites, e.g. small sat's, LEO comsat's. The SMARTSCAN concept uses in-situ measurements of the image motion with additional CCD-sensors in the focal plane and real-time image processing of these measurements by an onboard Joint Transform Optical Correlator. SMARTSCAN has been successfully demonstrated with breadboard models for the Optical Correlator and a Smart Pushbroom Camera at laboratory level (satellite motion simulator on base of a 5 DOF industrial robot) and by an airborne flight demonstration in July 2002. The paper describes briefly the principle of operation of the system and gives a description of the hardware model are provided. Detailed results of the airborne tests and performance analysis are given as well as detailed tests description.

Paper Details

Date Published: 2 February 2004
PDF: 10 pages
Proc. SPIE 5234, Sensors, Systems, and Next-Generation Satellites VII, (2 February 2004); doi: 10.1117/12.510712
Show Author Affiliations
Valerij Tchernykh, Technische Univ. Dresden (Germany)
Serguei Dyblenko, Technische Univ. Dresden (Germany)
Klaus Janschek, Technische Univ. Dresden (Germany)
Klaus Seifart, HTS GmbH (Germany)
Bernd Harnisch, European Space Agency/ESTEC (Netherlands)

Published in SPIE Proceedings Vol. 5234:
Sensors, Systems, and Next-Generation Satellites VII
Roland Meynart; Joan B. Lurie; Steven P. Neeck; Michelle L. Aten; Haruhisa Shimoda, Editor(s)

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