FG Raumfahrttechnik

6 Items

Recent Submissions
Thermalkontrollsystem mit Latentwärmespeicher für Picosatelliten

Wolf, Ronny (2021)

Die Einsatzmöglichkeiten von CubeSats haben in den letzten Jahren, aufgrund des technologischen Fortschritts, rasant zugenommen. Fortschreitende Entwicklungen im Bereich Erdbeobachtung und Echtzeit-Kommunikation, wie dem Internet-der-Dinge, erfordern zunehmend verteilte Satellitensysteme. Damit solche Konstellationen für Unternehmen der NewSpace-Branche finanzierbar sind, werden Anstrengungen u...

Small satellite TT&C allocations below 1 GHz: outcome of ITU WRC-19

von der Ohe, Martin (2020-04-15)

As hundreds of new small satellites are being launched each year, the RF spectrum for satellite communication becomes increasingly occupied. The International Telecommunication Union recognized this problem at World Radiocommunication Conference 2015 (WRC-15) and invited study groups to investigate the utilization of frequency allocations. The studies followed a three-step approach: first, the ...

Orbit deployment and drag control strategy for formation flight while minimizing collision probability and drift

Yoon, Zizung ; Lim, Yeerang ; Grau, Sebastian ; Frese, Walter ; Garcia, Manuel A. (2020-03-19)

The compact form factor of nanosatellites or even smaller satellites makes them predestined for distributed systems such as formations, constellations or large swarms. However, when it comes to orbit insertion of multiple satellites, these ride share payloads have constrains in the deployment parameters such as sequence, direction, velocity and time interval. Especially for formation flight mis...

Efficient and high precision momentum bias attitude control for small satellite

Mukhayadi, Mohammad (2021)

The fast-growing of small satellite technology gives advantages and opportunities for developing country with little or no experience in space technology to enter the field of space technology and its application. The ongoing reduction in mission complexity and the costs associated with management, as well as the possibility of launching it as an auxiliary payload on the launcher, have made the...

Beitrag zur Analyse des Eigenspannungsverhaltens von Composite-Hochdruckspeichern mit metallischem Liner

John, Sebastian (2020)

Bei der Auslegung von Hochdruckspeichern kommen, auf Grund ihrer hohen spezifischen Festigkeit, vermehrt Faserverbundwerkstoffe zum Einsatz. Durch eine hohe Streuung von Material- und Produktionsparametern sowie unterschiedlichster Belastungsszenarien in der Anwendung gestaltet sich jedoch eine Aussage über die Lebensdauer als auch eine Festlegung sinnvoller Prüffristen als schwierig. Die angef...

Design and Implementation of a Narrow-Band Intersatellite Network with Limited Onboard Resources for IoT

Yoon, Zizung ; Frese, Walter ; Briess, Klaus (2019-09-27)

Satellite networks are inevitable for the ubiquitous connectivity of M2M (machine to machine) and IoT (internet of things) devices. Advances in the miniaturization of satellite technology make networks in LEO (Low Earth Orbit) predestined to serve as a backhaul for narrow-band M2M communication. To reduce latency and increase network responsivity, intersatellite link capability among nodes is a...