Zobrazeno 1 - 10
of 119
pro vyhledávání: '"J.T. Ong"'
Publikováno v:
IEEE Transactions on Broadcasting. 50:192-199
This paper explores the techniques for measuring DTV signals received in an indoor environment at UHF. It is found that the mean and standard deviation of the received signals are dependent on spatial sampling interval and the number of samples. A mi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d357050d08a6aa6c5b19d37eff6a4a2d
https://doi.org/10.1109/tbc.2004.828371
https://doi.org/10.1109/tbc.2004.828371
Publikováno v:
IEEE Journal on Selected Areas in Communications. 15:1315-1326
This paper deals with the optimization of the design and radio network resource planning for cellular mobile communication systems. The key element to be considered for mobile network planning is cost. A hierarchical optimization planning method (HOP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::683c9bef5345bc1bbc2893e8cc2bc5ce
https://doi.org/10.1109/49.622914
https://doi.org/10.1109/49.622914
Publikováno v:
IEEE Transactions on Broadcasting. 50:396-398
Very few height-gain measurements have been made especially in built-up areas. Measurements made in Singapore confirm that the height-gain is different in different locations and depends on the local clutter, ground reflection and the radiation patte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f21373506296f8772ed13e33703543d9
https://doi.org/10.1109/tbc.2004.837872
https://doi.org/10.1109/tbc.2004.837872
Publikováno v:
IEEE Journal of Quantum Electronics. 29:1701-1707
Combining a gain-switched semiconductor laser, an erbium-doped fiber amplifier, and two cascaded fibers for compression, optical pulse trains of 0.63 ps FWHM in autocorrelation trace, with certain suppression of wing structures, were successfully gen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe2da9f1881777fd66798472f131c343
https://doi.org/10.1109/3.234424
https://doi.org/10.1109/3.234424
Publikováno v:
2nd European Conference on Antennas and Propagation (EuCAP 2007).
This paper analyzes and presents the measured drop size distribution (DSD) for five rain rates 4.20, 22.80, 66.54, 100.57 and 141.27 mm/hr in Singapore (1°20'N, 103°41'E). The ranges of rain drop diameters that are critical to the DSD are identifie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0aa59f7575d3f8245b45a2455f6d784
https://doi.org/10.1049/ic.2007.1028
https://doi.org/10.1049/ic.2007.1028
Publikováno v:
Scopus-Elsevier
Raindrop size distribution has been measured in Singapore (1deg20'N, 103deg41'E) for evaluating the rain effects on microwave propagation. In this paper, a lognormal model suitable for the region is proposed which is useful for the prediction of rain
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92d369029fa4a708458d3b062e54e5c7
https://doi.org/10.1109/icics.2005.1689202
https://doi.org/10.1109/icics.2005.1689202
Publikováno v:
13th IEEE International Semiconductor Laser Conference.
Optimum conditions were studied systematically for a system consisting of a gain-switched DHB laser, an EDFA, and a soliton fiber. Compressed pulses around 1.2ps with suppressed pedestal and reasonable pulse energy of 40pJ were obtained.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1090d0e49c44311a103485d66b32012d
https://doi.org/10.1109/islc.1992.763591
https://doi.org/10.1109/islc.1992.763591
Publikováno v:
Scopus-Elsevier
In the current climate of production monitoring, the main concern is to obtain measurement that has high accuracy and specificity. This can be achieved using a system that is independent of flow regime, having the ability to differentiate the velocit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::706ec0b54c838831f8936655536ff588
https://doi.org/10.2118/89978-ms
https://doi.org/10.2118/89978-ms
Publikováno v:
Proceedings. The IEEE 5th International Conference on Intelligent Transportation Systems.
Some technical considerations on the next electronic road pricing (ERP) system in Singapore are proposed. In this paper it includes positioning, digital map database, wireless communications to guide the driver to choose the optimal route with shorte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f62f8590beb2a413d9cc85dcbbc7ca2e
https://doi.org/10.1109/itsc.2002.1041252
https://doi.org/10.1109/itsc.2002.1041252
Publikováno v:
[1992] Proceedings of the IEEE International Symposium on Industrial Electronics.
This paper describes the development of a RF range tester to measure the performance of cordless telephones. The proposed hardware consists of a Motorola DSP56001 digital signal processor (DSP), a HP11713A programmable attenuator switch driver, an ar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc795b0cdaa3c96934d131090b9973f8
https://doi.org/10.1109/isie.1992.279645
https://doi.org/10.1109/isie.1992.279645