Andreas Gerndt
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View article: Towards representation learning of radar altimeter waveforms for sea ice surface classification
Towards representation learning of radar altimeter waveforms for sea ice surface classification Open
Satellite radar altimeters provide crucial insights into polar oceans and their sea ice cover, enabling the estimation of sea level, sea ice freeboard, and thickness. These retrieval algorithms depend on accurate discrimination between rad…
View article: Model checking of spacecraft operational designs: a scalability analysis
Model checking of spacecraft operational designs: a scalability analysis Open
Ensuring the correct and safe behavior of a spacecraft is a main objective in space-system design. Since spacecraft consist of highly complex and tightly integrated components developed by large teams of engineers from various different di…
View article: Physically Based Real‐Time Rendering of Eclipses
Physically Based Real‐Time Rendering of Eclipses Open
We present a novel approach for simulating eclipses, incorporating effects of light scattering and refraction in the occluder's atmosphere. Our approach not only simulates the eclipse shadow, but also allows for watching the Sun being ecli…
View article: STRIELAD -- A Scalable Toolkit for Real-time Interactive Exploration of Large Atmospheric Datasets
STRIELAD -- A Scalable Toolkit for Real-time Interactive Exploration of Large Atmospheric Datasets Open
Technological advances in high performance computing and maturing physical models allow scientists to simulate weather and climate evolutions with an increasing accuracy. While this improved accuracy allows us to explore complex dynamical …
View article: Enhancing Uncertainty Communication in Time Series Predictions: Insights and Recommendations
Enhancing Uncertainty Communication in Time Series Predictions: Insights and Recommendations Open
As the world increasingly relies on mathematical models for forecasts in different areas, effective communication of uncertainty in time series predictions is important for informed decision making. This study explores how users estimate p…
View article: Designing for Human Operations on the Moon: Challenges and Opportunities of Navigational HUD Interfaces
Designing for Human Operations on the Moon: Challenges and Opportunities of Navigational HUD Interfaces Open
Future crewed missions to the Moon will face significant environmental and\noperational challenges, posing risks to the safety and performance of\nastronauts navigating its inhospitable surface. Whilst head-up displays (HUDs)\nhave proven …
View article: Physically Based Real‐Time Rendering of Atmospheres using Mie Theory
Physically Based Real‐Time Rendering of Atmospheres using Mie Theory Open
Most real‐time rendering models for atmospheric effects have been designed and optimized for Earth's atmosphere. Some authors have proposed approaches for rendering other atmospheres, but these methods still use approximations that are onl…
View article: Immersive and Interactive 3D Visualization of Large-Scale Geoscientific Data
Immersive and Interactive 3D Visualization of Large-Scale Geoscientific Data Open
Virtual reality (VR) technology has great potential in supporting planetary scientists and the field of geosciences by offering immersive and interactive experiences for data exploration and analysis. This paper shows the opportunities pre…
View article: A mixed-method approach to investigate the public acceptance of drones
A mixed-method approach to investigate the public acceptance of drones Open
Drones may play an essential role in future traffic. As with every innovation, not only is the technical maturity decisive for its success, but also whether the general public will accept it. This paper uses a mixed-method approach combini…
View article: Applicability of Model Checking for Verifying Spacecraft Operational Designs
Applicability of Model Checking for Verifying Spacecraft Operational Designs Open
This is a summary of the paper Applicability of Model Checking for Verifying Spacecraft Operational Designs which has been published at the 26th International Conference on Model Driven Engineering Languages and Systems (MODELS 23).
View article: ESID: Exploring the Design and Development of a Visual Analytics Tool for Epidemiological Emergencies
ESID: Exploring the Design and Development of a Visual Analytics Tool for Epidemiological Emergencies Open
Visual analytics tools can help illustrate the spread of infectious diseases and enable informed decisions on epidemiological and public health issues. To create visualisation tools that are intuitive, easy to use, and effective in communi…
View article: VVAFER — Versatile visual analytics framework for exploration and research
VVAFER — Versatile visual analytics framework for exploration and research Open
The development of interactive visualization applications that are applicable to many real-world problems is a challenging affair. For every new project, developers need to follow the same repetitive steps of fetching the raw data, transfo…
View article: VESTEC: Visual Exploration and Sampling Toolkit for Extreme Computing
VESTEC: Visual Exploration and Sampling Toolkit for Extreme Computing Open
Natural disasters and epidemics are unfortunate recurring events that lead to huge societal and economic loss. Recent advances in supercomputing can facilitate simulations of such scenarios in (or even ahead of) real-time, therefore suppor…
View article: Model checking message delivery times in SpaceWire networks
Model checking message delivery times in SpaceWire networks Open
This paper presents a model checking framework in Uppaal for finding worst-case
\nmessage delivery times for periodic and event-driven message flows in a
\nSpaceWire network with wormhole switching. In particular, we focus on
\nsegmentatio…
View article: Real‐Time Rendering of Eclipses without Incorporation of Atmospheric Effects
Real‐Time Rendering of Eclipses without Incorporation of Atmospheric Effects Open
In this paper, we present a novel approach for real‐time rendering of soft eclipse shadows cast by spherical, atmosphereless bodies. While this problem may seem simple at first, it is complicated by several factors. First, the extreme scal…
View article: RayPC: Interactive Ray Tracing Meets Parallel Coordinates
RayPC: Interactive Ray Tracing Meets Parallel Coordinates Open
Large-scale numerical simulations of planetary interiors require dedicated visualization algorithms that are able to efficiently extract a large amount of information in an interactive and user-friendly way. Here we present a software fram…
View article: Workflows to driving high-performance interactive supercomputing for urgent decision making
Workflows to driving high-performance interactive supercomputing for urgent decision making Open
Interactive urgent computing is a small but growing user of supercomputing resources. However there are numerous technical challenges that must be overcome to make supercomputers fully suited to the wide range of urgent workloads which cou…
View article: Utilizing multi-level concepts for multi-phase modeling
Utilizing multi-level concepts for multi-phase modeling Open
In model-based systems engineering projects, engineers from multiple domains collaborate by establishing a common system model. Multi-level modeling is a technique that can be used to model the development from abstract ideas to concrete i…
View article: Workflows to Driving High-Performance Interactive Supercomputing for Urgent Decision Making
Workflows to Driving High-Performance Interactive Supercomputing for Urgent Decision Making Open
Interactive urgent computing is a small but growing user of supercomputing resources. However there are numerous technical challenges that must be overcome to make supercomputers fully suited to the wide range of urgent workloads which cou…
View article: Utilising urgent computing to tackle the spread of mosquito-borne diseases
Utilising urgent computing to tackle the spread of mosquito-borne diseases Open
It is estimated that around 80\% of the world's population live in areas susceptible to at-least one major vector borne disease, and approximately 20% of global communicable diseases are spread by mosquitoes. Furthermore, the outbreaks of …
View article: Utilising urgent computing to tackle the spread of mosquito-borne diseases
Utilising urgent computing to tackle the spread of mosquito-borne diseases Open
It is estimated that around 80% of the world's population live in areas susceptible to at-least one major vector borne disease, and approximately 20% of global communicable diseases are spread by mosquitoes. Furthermore, the outbreaks of s…
View article: Interactive visualization and topology-based analysis of large-scale time-varying remote-sensing data: challenges and opportunities
Interactive visualization and topology-based analysis of large-scale time-varying remote-sensing data: challenges and opportunities Open
<p>Over the last few years, the amount of large and complex data in the public domain has increased enormously and new challenges arose in the representation, analysis and visualization of such data. Considering the number of space m…
View article: Model-Based Reconfiguration Planning for a Distributed On-board Computer
Model-Based Reconfiguration Planning for a Distributed On-board Computer Open
The ScOSA project (Scalable On-board Computing for Space Avionics) of the German
\nAerospace Center aims at combining radiation hardened space hardware together
\nwith unreliable, but high performance COTS (commercial off-the-shelf) compon…
View article: Synthesizing and optimizing FDIR recovery strategies from fault trees
Synthesizing and optimizing FDIR recovery strategies from fault trees Open
Redundancy concepts are major design drivers in fault-tolerant space systems. It can be a difficult task to decide when to activate which redundancy, and which component should be replaced. In this paper, we refine a methodology where reco…
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…
View article: Enabling a Conceptual Data Model and Workflow Integration Environment for Concurrent Launch Vehicle Analysis
Enabling a Conceptual Data Model and Workflow Integration Environment for Concurrent Launch Vehicle Analysis Open
Concurrent Engineering (CE) and Model Based Systems Engineering (MBSE) have increased the efficiency of spacecraft, and satellite design in particular. Early design of satellites in Concurrent Engineering Centers (CEC) has almost become bu…
View article: 3D spacecraft configuration using immersive AR technology
3D spacecraft configuration using immersive AR technology Open
In this paper we propose an integrated immersive augmented reality solution for a software tool supporting spacecraft design and verification. The spacecraft design process relies on expertise in many domains, such as thermal and structura…