Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Andreas Gebhard"'
Autor:
Joanna Masel, James Ian Mackie Petrie, Jason Bay, Wolfgang Ebbers, Aalekh Sharan, Scott Michael Leibrand, Andreas Gebhard, Samuel Zimmerman
Publikováno v:
JMIR Public Health and Surveillance, Vol 9, p e49560 (2023)
Digital contact tracing and notification were initially hailed as promising strategies to combat SARS-CoV-2; however, in most jurisdictions, they did not live up to their promise. To avert a given transmission event, both parties must have adopted th
Externí odkaz:
https://doaj.org/article/4a59f8174a764995b8fb05de7f0b2e6d
Autor:
Silvester Sadjina, Krzysztof Dufrene, Andreas Gebhard, Harald Pretl, Stefan Tertinek, Mario Huemer
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 67:1229-1233
Due to the use of wide-band analog front-ends in order to cover the many different frequency bands used in Long Term Evolution (LTE), blocker signals received by the antenna may reach the mixer input. As a consequence, square-wave mixer implementatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::17e912a85383da3e901af1833158a1eb
https://doi.org/10.1109/tcsii.2019.2937654
https://doi.org/10.1109/tcsii.2019.2937654
Autor:
Andreas Gebhard, Matthias Wagner, Mario Huemer, Harald Pretl, Thomas Paireder, Christina Auer, Christian Motz, Oliver Lang, Ram Sunil Kanumalli, Michael Lunglmayr
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 67:1946-1961
Transceivers operating in frequency division duplex experience a transmitter leakage (TxL) signal into the receiver due to the limited duplexer stopband isolation. This TxL signal in combination with the second-order nonlinearity of the receive mixer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6e5772ba2ce85693c1d78b929e02288
https://doi.org/10.1109/tmtt.2019.2896513
https://doi.org/10.1109/tmtt.2019.2896513
Autor:
Andreas Gebhard, Bai Cheng Jim
Publikováno v:
Wear. :204343
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b8a1cd781a0b2564ee2f5f0fec9da65
https://doi.org/10.1016/j.wear.2022.204343
https://doi.org/10.1016/j.wear.2022.204343
Publikováno v:
Algorithms, Vol 17, Iss 10, p 430 (2024)
In most re-identification approaches, embedding vectors are compared to identify the best match for a given query. However, this comparison does not take into account whether the encoded information in the embedding vectors was extracted reliably fro
Externí odkaz:
https://doaj.org/article/c47d7b465eba47a0b220f9a7b7b814fd
Autor:
Ram Sunil Kanumalli, Christina Auer, Alexander Melzer, Andreas Gebhard, Oliver Ploder, Thomas Paireder, Oliver Lang, Mario Huemer, Christian Motz
Publikováno v:
Computer Aided Systems Theory – EUROCAST 2019 ISBN: 9783030450953
EUROCAST (2)
EUROCAST (2)
In frequency division duplex transceivers, the non-ideal analog duplexer has only a limited stop-band attenuation, and therefore a part of the transmit signal leaks into the receive path. Although operating on a different frequency band, non-ideal ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ec14d838cefa1d9541a9f7094becfeba
https://doi.org/10.1007/978-3-030-45096-0_5
https://doi.org/10.1007/978-3-030-45096-0_5
Autor:
Harald Pretl, Krzysztof Dufrene, Andreas Gebhard, Mario Huemer, Silvester Sadjina, Ram Sunil Kanumalli
Publikováno v:
IEEE Transactions on Circuits and Systems I: Regular Papers. 65:3745-3755
In RF transceivers operating in carrier-aggregation, spurs are generated on the transceiver chip which may down-convert any blocker signal located at the spur frequency into the receiver baseband. The blocker signal could either be the transceiver’
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87788d577326554a56d26b7058316c26
https://doi.org/10.1109/tcsi.2018.2861460
https://doi.org/10.1109/tcsi.2018.2861460
Autor:
Jovan Markovic, Peter Preyler, Andreas Gebhard, Andreas Springer, Christoph Preissl, Ram Sunil Kanumalli, Ehrentraud Hager, T. Buckel, Damir Hamidovic, Harald Pretl, Mario Huemer, Christian Motz
Publikováno v:
e & i Elektrotechnik und Informationstechnik. 135:30-39
This article presents an overview of the major trends and challenges involved with the design of multi-band, multi-standard digitally-intensive radio frequency transceivers for next generation mobile communications. In addition, we discuss in detail
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::097e32c4cc8e8f8ab1b69f967d3c8bc9
https://doi.org/10.1007/s00502-017-0576-1
https://doi.org/10.1007/s00502-017-0576-1
Autor:
Ram Sunil Kanumalli, Ahmed Elmaghraby, Christina Auer, Thomas Paireder, Mario Huemer, Christian Motz, Andreas Gebhard
Publikováno v:
ACSSC
The implementation of carrier aggregation (CA) in cellular handsets leads to the generation of several unwanted spurs in the radio frequency (RF) transceiver chip. In frequency-division duplex (FDD) mode this may lead to the down-conversion of the tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a63c557533bee57e9ece2d4ad55d904
https://doi.org/10.1109/acssc.2018.8645528
https://doi.org/10.1109/acssc.2018.8645528
Autor:
Andreas Gebhard, Erich Kramer, Elias Siores, Kurt Witan, Anand Arcot Narasimulu, Harald Hunke, Navneet Soin, Tahir Shah
Publikováno v:
Wear. :122-132
Tribological and mechanical properties of α-olefin-copolymer, impact-modified Polyamide 66, containing pristine and plasma treated Polytetrafluoroethylene (PTFE) micro-powders as solid-lubricants have been investigated. The PTFE powders were subject
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1081c1fa7aab394f85f13c63b999e9f
https://doi.org/10.1016/j.wear.2015.06.003
https://doi.org/10.1016/j.wear.2015.06.003