21 research outputs found
Development of an On-Board Wind Measurement System Based on Low-Cost Sensors for General Aviation Aircraft
No full textDie vorliegende Arbeit behandelt die Erprobung und Entwicklung eines Systems zur Bestimmung des Windes an Bord von Kleinflugzeugen während des Fluges.
Die zur Bestimmung des Windes notwendigen Größen werden durch kostengünstige Sensoren in Kombination mit leistungsfähigen Algorithmen bereitgestellt.
Der aerodynamische Anstell- und Schiebewinkel wird unter Berücksichtigung flugmechanischer Zusammenhänge aus inertialen Messgrößen, aerodynamischen Modelldaten und Steuerflächenausschlägen ermittelt. Eine hohe Bandbreite wird durch die Verwendung von komplementären Filteralgorithmen sichergestellt.
Durch ein integriertes Navigationssystem wird eine genaue Bestimmung der Position, der Geschwindigkeit und der Lage des Luftfahrzeugs erreicht.
Diese Daten werden dem Piloten in einer leicht zugänglichen Darstellung visualisiert. Im Rahmen eines ausführlichen Erprobungsprogramms wird die Leistungsfähigkeit des Konzepts demonstriert.In this dissertation a system for on-board wind determination for General Aviation aircraft based on low-cost sensor components is presented.
This concept relies on a small number of sensors and provides relevant information for wind determination by an effective combination of measurements and sensor data fusion- and estimation algorithms.
The aerodynamic flow angles are estimated using inertial measurements, aerodynamic model information and control surface deflections taking into account flight mechanical relations. A high bandwidth for these values is achieved using complementary filtering algorithms.
An integrated navigation system is providing precise data on the position, velocity and attitude of the aircraft.
Information provided by this system is displayed to the pilot in a way easily to comprehend.
The capabilities of the concept are tested and proven in an extensive test campaign
Flight Testing an Integrated Wind/Airdata- and Navigation System for General Aviation Aircraft
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Application of a Process-Oriented Build Tool for Flight Controller Development Along a DO-178C/DO-331 Process
No full textEnhancing DO-178C/DO-331 Based Process-Oriented Build Tool: Integration of System Composer and Automated PIL Simulation
No full textThe growing utilization of software in safety-critical systems can be attributed to advancing technology and substantial interest within aerospace and space industries. However, this increased reliance on software to enhance avionic system functionality raises crucial safety questions, emphasizing the need for compliance with standards like DO-178C/DO-331. To facilitate development, a process-oriented build tool was created in MATLAB/Simulink. This tool enhances development efficiency and ensures adherence to established processes, offering benefits like modular software management, systematic artifact handling with traceability, seamless integration with various verification tools, automated model and code verification, and a well-defined design environment. Recently, two new advancements have been made to the tool, integration of System Composer for developing software architecture and automated processor-in-the-loop (PIL) verification using Trace32. This paper presents these new developments along with examples
Low-Cost Sensor Based Integrated Airdata and Navigation System for General Aviation Aircraft
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Application of a model-based reconfiguration approach for the ISS COLUMBUS Environmental Control and Life Support System (ECLSS)
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