Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Heung Jae Im"'
Publikováno v:
Journal of the Ergonomics Society of Korea. 26:91-100
The purposes of this research are to survey work-related risk factors of musculoskeletal disorders(MSDs) in various departments and tasks at general hospitals in non-manufacturing sectors, and to use basic data derived from the survey results in prev
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d9a16ca3370de96f95e27d0339f5726
https://doi.org/10.5143/jesk.2007.26.3.091
https://doi.org/10.5143/jesk.2007.26.3.091
Publikováno v:
IEEE Transactions on Vehicular Technology. 51:808-816
Blind beamforming based on the maximum signal-to-noise ratio (MSNR) can improve the performance of an array system only when the processing gain of the given code-division multiple-access (CDMA) system is high enough such that the desired signal can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23d9e7820adbae19c342b3a6dc239f58
https://doi.org/10.1109/tvt.2002.801546
https://doi.org/10.1109/tvt.2002.801546
Autor:
Seungwon Choi, Heung-Jae Im
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 49:2142-2146
In this paper, we present a performance analysis of a smart antenna system operating in a wide-band CDMA wireless-local-loop channel using a beam-forming module (BFM) that has been implemented on a digital signal processor (TMS320C6701) board. We fir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61041d684cc08e68d7a4f56dbc54d110
https://doi.org/10.1109/22.963150
https://doi.org/10.1109/22.963150
Autor:
Seungheon Hyeon, Hwanseog Bahk, Weon-cheol Lee, Seungwon Choi, Cheolhoon Lee, Heung-Jae Im, Jonghun Kim
Publikováno v:
Scopus-Elsevier
This paper presents performance analysis of a smart antenna base station (SABS) that has been implemented for IS-2000 1X system. The SABS introduced in this paper includes all the subsystems required in a commercial base station such as array antenna
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6d8302e1c91077bc67a9a37c1caebfb
https://doi.org/10.1109/vetecs.2003.1207609
https://doi.org/10.1109/vetecs.2003.1207609
Publikováno v:
The 8th International Conference on Communication Systems, 2002. ICCS 2002..
This paper presents a performance analysis of smart antenna BTS (base-station transceiver subsystem) for the frame error rate (FER) and detection probability in PN-code acquisition, which provides a tremendous increase in communication capacity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6340858915a4a66f290a259abbebabc4
https://doi.org/10.1109/iccs.2002.1182504
https://doi.org/10.1109/iccs.2002.1182504
Publikováno v:
IEEE Antennas and Propagation Society International Symposium (IEEE Cat. No.02CH37313).
This paper presents a performance analysis of a smart antenna system (SAS) with a special emphasis on the searching and tracking capability. For both searching and tracking procedure, the SAS consisting of 6 antenna elements in this paper generates t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae28030a9a6ac66089d64ee4424c3ff9
https://doi.org/10.1109/aps.2002.1016420
https://doi.org/10.1109/aps.2002.1016420
Publikováno v:
2000 Asia-Pacific Microwave Conference. Proceedings (Cat. No.00TH8522).
In this paper, we present a performance analysis of the smart antenna system operating in a wide-band CDMA (Code division multiple access) WLL (Wireless local loop) channel through a test-bed that has been implemented on a DSP (TMS320C6701) board. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae1c82877a6a0cc50878bcdc81e4cb1b
https://doi.org/10.1109/apmc.2000.925952
https://doi.org/10.1109/apmc.2000.925952
Autor:
Seungwon Choi, Heung-Jae Im
Publikováno v:
IEEE Antennas and Propagation Society International Symposium. Transmitting Waves of Progress to the Next Millennium. 2000 Digest. Held in conjunction with: USNC/URSI National Radio Science Meeting (Cat. No.00CH37118).
In this paper, we present a hardware implementation of a smart antenna test-bed for real-time simulation of our adaptive beamforming algorithm. The test-bed consists of a PC (RX-data generation), interface module, and beamformer (weight computation)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::45d53a236f9bb9ba7119691c5e814716
https://doi.org/10.1109/aps.2000.875377
https://doi.org/10.1109/aps.2000.875377
Publikováno v:
VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026).
We present a performance analysis of a smart antenna system operating in a wideband CDMA (code division multiple access) WLL (wireless local loop) channel. The analysis is done using a test-bed consisting of a data-generating PC, interfacing module,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdc8d7db9cfe638a85cb3232dde46e5a
https://doi.org/10.1109/vetecs.2000.851475
https://doi.org/10.1109/vetecs.2000.851475
Autor:
Heung-Jae Im, Seungwon Choi
Publikováno v:
IEEE Transactions on Microwave Theory & Techniques. Nov2001, Vol. 49 Issue 11, p2142. 5p. 4 Black and White Photographs, 4 Diagrams, 1 Chart, 5 Graphs, 1 Map.