A5011913802- Space Satellite Systems and Control
- Astro and Planetary Science
- Laser-induced spectroscopy and plasma
- Planetary Science and Exploration
- GNSS positioning and interference
- Inertial Sensor and Navigation
- Astronomical Observations and Instrumentation
- Spacecraft Dynamics and Control
- Aluminum Alloy Microstructure Properties
- Spacecraft Design and Technology
- Microstructure and mechanical properties
- Satellite Image Processing and Photogrammetry
- Aluminum Alloys Composites Properties
- Rocket and propulsion systems research
- Target Tracking and Data Fusion in Sensor Networks
- Ionosphere and magnetosphere dynamics
- Optimization and Search Problems
- Geomagnetism and Paleomagnetism Studies
- Nuclear Physics and Applications
- Guidance and Control Systems
- Optical Systems and Laser Technology
- Aerospace Engineering and Control Systems
- Magnetic Properties of Alloys
- High-Velocity Impact and Material Behavior
- Solar and Space Plasma Dynamics
University of Bern
2016-2025
Astronomical Institute of the Slovak Academy of Sciences
2024
ETH Zurich
1997-2002
Board of the Swiss Federal Institutes of Technology
2002
Paul Scherrer Institute
1997-1998
Abstract Monitoring of the near-Earth space environment has become more and important in recent times. The constantly increasing amount debris is a major threat for activities an exhaustive knowledge about objects population primary importance civil military applications. surveillance surrounding Earth achieved by means sensors based on different technologies. Passive optical observations using ground telescopes are usually employed to track high altitude orbits. obtained measurements...
Light curve analysis of defunct satellites is critical for characterizing their rotational motion. An accurate understanding this aspect will benefit active debris removal and on-orbit servicing missions as part the solution to space issue. In study, we explored attitude behavior inactive GLONASS satellites, specifically a repeating pattern observed in spin period evolution. We utilized large amount data available light database maintained by Astronomical Institute University Bern (AIUB)....
Space surveillance by radar is especially used for the low Earth orbit to maintain a database, also called catalogue, of objects on orbit. Among others, radars which are constantly scanning region interest in sky this purpose. The detections from such cannot be assigned an already known catalogue object might not contain enough information obtain reliable initial new entry single measured pass, tracklet. Instead, two tracklets can combined improve quality leads correlation problem. This...
Any image processing object detection algorithm somehow tries to integrate the light (Recognition Step) and applies statistical criteria distinguish objects of interest from other or pure background (Decision Step). There are various possibilities how these two basic steps can be realized, as seen in different proposed methods literature. An ideal should provide high recognition sensitiv ity with decision accuracy require a reasonable computation effort . In reality, gain sensitivity is...
Cataloging geocentric objects can be put in the framework of Multiple Target Tracking (MTT). Current work tends to focus on S = 2 MTT problem because its favorable computational complexity O(n²). The becomes NP-hard for a dimension S˃3. challenge is find an approximation solution within reasonable computation time. To effciently approximate this Genetic Algorithm used. algorithm applied simulated test case. These results represent first steps towards method that treat S˃3 and with minimal...