Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Poul Leth-Espensen"'
Publikováno v:
IEEE Open Journal of Antennas and Propagation, Vol 3, Pp 511-522 (2022)
The Multiple-Input Multiple-Output (MIMO) radar combines the signals from multiple transmit and receive elements separately to form a virtual array. Consequently, system imperfections in the MIMO radar caused by channel imbalance and mutual coupling
Externí odkaz:
https://doaj.org/article/39446ed4e83a4b649c7918df489e6491
Publikováno v:
2020 17th European Radar Conference (EuRAD).
The mutual coupling in antenna arrays for Multiple-Input Multiple-Output (MIMO) radar is calculated using the far-field of specified sub-volumes in the antenna array structure. The far-field calculations are based on full wave simulations in CST Micr
Publikováno v:
Wireless Personal Communications. 14:255-274
This paper presents the performance of adaptive antennas in a 1/3 reuse frequency hopping GSM network using conventional beamforming. It mainly focuses on C/I improvement for the purpose of capacity enhancement. The performance evaluation has been co
Autor:
Steen Leth Larsen, Preben Mogensen, Kim Olesen, Per Zetterberg, Poul Leth-Espensen, F. Frederiksen
Publikováno v:
PIMRC
This paper shows the results for a direction of arrival (DOA) algorithm, which is designed for downlink beamsteering in a GSM related system. Measurement campaigns have been conducted for an 8 element adaptive antenna array in an urban environment. T
Publikováno v:
Mogensen, P E, Espensen, P, Pedersen, K I & Zetterberg, P 1999, Antenna Arrays and Space Division Multiple Access . in Zvonar, Zonan : Jung, Peter : Kamerlander, Karl (eds.) (ed.), GSM : Evolution Towards 3rd Generation Systems . Kluwer Academic Publishers, Boston, pp. 117-151 .
GSM Evolution Towards 3rd Generation Systems ISBN: 0792383516
GSM Evolution Towards 3rd Generation Systems ISBN: 0792383516
Adaptive base station antennas also called smart antennas have recently become a hot research topic. In principle the adaptive antenna concept consists of an antenna array and a flexible beamforming network. In terms of commercial exploitation there
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5af8b2db8a75951a8fb8001e0be18879
https://vbn.aau.dk/da/publications/f9b8d040-7486-11db-abfe-000ea68e967b
https://vbn.aau.dk/da/publications/f9b8d040-7486-11db-abfe-000ea68e967b
Publikováno v:
Mogensen, P E, Leth-Espensen, P, Pedersen, K I, Frederiksen, F & Zetterberg, P 1998, Performance of a Beamsteering Algorithm Designed for Adaptive Base Station Antennas in FH-GSM . in IEEE Proc. of Universal Personal Communications (ICUPC '98) . pp. 331-336, Performance of a Beamsteering Algorithm Designed for Adaptive Base Station Antennas in FH-GSM, 19/05/2010 .
The paper shows the performance a of beamsteering algorithm designed for adaptive base station antennas in FH-GSM. The results are based on network simulations using stored space-time multipath radio channel data from Aarhus and Stockholm.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2078eac03825df816046a5d628f00420
https://vbn.aau.dk/da/publications/e52c5130-a55d-11db-b8eb-000ea68e967b
https://vbn.aau.dk/da/publications/e52c5130-a55d-11db-b8eb-000ea68e967b
Autor:
F. Frederiksen, Preben Mogensen, Klaus Ingemann Pedersen, Poul Leth-Espensen, Kim Olesen, Steen Leth Larsen, Bernard Henri Fleury
Publikováno v:
Mogensen, P E, Pedersen, K I, Leth-Espensen, P, Fleury, B H, Frederiksen, F, Olesen, K & Larsen, S L 1997, Preliminary Measurement Results from an Adaptive Antenna Array Testbed for GSM/UMTS . in Proceedings of the 1997 IEEE 47th Vehicular Technology Conference, Phoenix, Ariz., . IEEE Signal Processing Society, pp. 1592-1596, Preliminary Measurement Results from an Adaptive Antenna Array Testbed for GSM/UMTS, 19/05/2010 .
This paper presents preliminary measurement results for an 8 element adaptive antenna array in an urban environment. The results show that in most cases the received signal consists of a single narrowly scattered component impinging from the directio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e106b03da05467949a08b1a80164e240
https://vbn.aau.dk/da/publications/22fd0010-8095-11db-8b97-000ea68e967b
https://vbn.aau.dk/da/publications/22fd0010-8095-11db-8b97-000ea68e967b
Conference
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Conference
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