Markus Schlotterer
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Physical Modeling and Simulation of Reusable Rockets for GNC Verification and Validation Open
Reusable rockets must rely on well-designed Guidance, Navigation and Control (GNC) algorithms. Because they are tested and verified in closed-loop, high-fidelity simulators, emphasizing the strategy to achieve such advanced models is of pa…
Structured Robust Control for the Aerodynamic Steering of Reusable Rockets Open
This paper investigates the use of structured H∞ control for the aerodynamic descent phase of a reusable rocket. A unified control strategy for attitude and position is proposed and verified. The architecture of the controller, together wi…
View article: Planetary Defense Ground Zero: MASCOT's View on the Rocks - an Update between First Images and Sample Return
Planetary Defense Ground Zero: MASCOT's View on the Rocks - an Update between First Images and Sample Return Open
At 01:57:20 UTC on October 3rd, 2018, after 3½ years of cruise aboard the JAXA spacecraft HAYABUSA2 and about 3 months in the vicinity of its target, the MASCOT lander was separated successfully by from an altitude of 41 m. After a free-fa…
Onboard Guidance for Reusable Rockets: Aerodynamic Descent and Powered Landing Open
This paper describes a novel general on-board guidance strategy which can be applied toboth the aerodynamically-controlled descent and the powered landing phase of reusable rockets.The proposed guidance method is based on sequential convex…
View article: FDIR Handling in Eu:CROPIS
FDIR Handling in Eu:CROPIS Open
Fault detection, isolation, and recovery (FDIR) mechanisms in on-board software are essential to guarantee the survival of the satellite in case of a hardware malfunction. E.g., outage of essential attitude control system (ACS) actuators o…
MASCOT – a Mobile Lander on-board Hayabusa2 Spacecraft – Status and Operational Concept for the Asteroid Ryugu Open
MASCOT (‘Mobile Asteroid Surface Scout’) is a 10 kg mobile surface science package on board JAXA’s
\nHayabusa2 sample return mission, currently on its way to the near-Earth asteroid (162173) Ryugu.
\nThe mission was launched in December 2…
Experimental setup and tests’ results for uncooperative objects capture and manoeuvring with robotic arm Open
Active Debris Removal (ADR) and On-Orbit Servicing
\n(OOS) are current research and development topics
\nwhich are dealing with - either fully or partially -
\nuncooperative orbiting objects to be approached and
\ncaptured autonomously. Fo…