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Item type:Publication, Access status: with files , Development of a highly integrated and radiation-tolerant software-defined radio platform for multi-band radio applications in space systems(2021-08-31); The present thesis deals with the design of a highly integrated and radiation tolerant software-defined radio (SDR) platform for multi-channel radio applications in space systems. The described design addresses the risk-minimized use of non-space qualified electronic components for critical space systems, which is ultimately used for the development and verification of the innovative SDR platform presented in this work.Publicationtype: Doctoral Thesis496 1271 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , Radiation hardness assurance through system-level testing: risk acceptance, facility requirements, test methodology, and data exploitation(IEEE, 2021-02-22); ; ; ; Functional verification schemes at a level different from component-level testing are emerging as a cost-effective tool for those space systems for which the risk associated with a lower level of assurance can be accepted. Despite the promising potential, system-level radiation testing can be applied to the functional verification of systems under restricted intrinsic boundaries. Most of them are related to the use of hadrons as opposed to heavy ions. Hadrons are preferred for the irradiation of any bulky system, in general, because of their deeper penetration capabilities. General guidelines about the test preparation and procedure for a high-level radiation test are provided to allow understanding which information can be extracted from these kinds of functional verification schemes in order to compare them with the reliability and availability requirements. The use of a general scaling factor for the observed high-level cross sections allows converting test cross sections into orbit rates.Publicationtype: Journal ArticleScopus© Citations 10 182 166 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Heavy ion induced single event effects characterization on an RF-agile transceiver for flexible multi-band radio systems in newspace avionics(2020-02-01); ; ; ; Nowadays, technologies have a massive impact on the design of avionic systems, even for the conservative space industry. In this paper, the single event effect (SEE) characterization of a highly integrated and radio frequency (RF) agile transceiver is being presented which is an outstanding candidate for future radio systems in NewSpace applications and space avionics. The device being investigated allows programmable re-configuration of RF specifications, where classical software-defined radios (SDR) only define an on-demand re-configuration of the signal processing. RF related configurations are untouched for common SDR and developed discretely by the specific application requirements. Due to the high integrity and complexity of the device under test (DUT), state-of-the-art radiation test procedures are not applicable and customized testing procedures need to be developed. The DUT shows a very robust response to linear energy transfer (LET) values up to 62.5 MeV.cm2/mg, without any destructives events and a moderate soft error rate.Publicationtype: Journal Article33 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: with files , In-situ testing of a multi-band software-defined radio platform in a mixed-field irradiation environment(Multidisciplinary Digital Publishing Institute (MDPI), 2019-09-24); ; ; ; This paper presents an in-situ test concept for a multi-band software-defined radio (SDR) platform in a mixed-field radiation environment. Special focus is given to the complex automated test setup with respect to the requirements of the irradiation facility. Additionally, selected test results of a system-level evaluation are presented and discussed. For the verification of the mixed-field radiation environment, the software-defined radio (SDR) was also tested under proton irradiation. The cross-sections for the observed single event effects are compared and show similar results.Publicationtype: Journal Article151 226 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Access status: without files , Design challenges of a highly integrated SDR platform for multiband spacecraft applications in radiation enviroments(2018-03-09); Software-Defined Radios (SDR) are already widely-used and often implemented in terrestrial Radio Frequency (RF) and wireless applications. Even the very conservative and slow changing space industry has identified the benefits of reconfigurable radio systems and uses SDRs on satellites and space vehicles. Nevertheless, those systems are mostly inapplicable for lower- and mid-class mission, or are often limited in performance, reliability and are only available for a specific frequency band. This paper presents the approach for a reliable and highly integrated Generic Software Defined-Radio (GSDR) platform design, using state-of-the-art RF transceiver devices to provide multi-band applications on spacecraft. Design challenges under radiation environments for this GSDR platform are discussed and results of a pre-evolution test under selected radiation condition on a prototype are presented.Publicationtype: Conference Paper100