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Showing papers by "Ulrich Johann published in 2000"


Proceedings ArticleDOI
TL;DR: The OISI (Optical/Infrared Spaceborne Interferometry) project is a platform to investigate system engineering, technologies and simulation tools required for the development of spaceborne optical interferometers, a class of instruments, expected to play an important role in future space exploration.
Abstract: The OISI (Optical/Infrared Spaceborne Interferometry) project is a platform to investigate system engineering, technologies and simulation tools required for the development of spaceborne optical interferometers, a class of instruments, expected to play an important role in future space exploration.

2 citations


Proceedings ArticleDOI
TL;DR: The OISI Dynamic end-to-end modeling tool as mentioned in this paper is tailored to endtoend modeling and dynamic simulation of Earth and space-based actively controlled optical instruments such as e.g. optical stellar interferometers.
Abstract: The OISI Dynamic end-to-end modeling tool is tailored to end-to-end modeling and dynamic simulation of Earth- and space-based actively controlled optical instruments such as e.g. optical stellar interferometers. `End-to-end modeling' is meant to denote the feature that the overall model comprises besides optical sub-models also structural, sensor, actuator, controller and disturbance sub-models influencing the optical transmission, so that the system- level instrument performance due to disturbances and active optics can be simulated. This tool has been developed to support performance analysis and prediction as well as control loop design and fine-tuning for OISI, Germany's preparatory program for optical/infrared spaceborne interferometry initiated in 1994 by Dornier Satellitensysteme GmbH in Friedrichshafen.

2 citations