Zobrazeno 1 - 10
of 136
pro vyhledávání: '"M. Attygalle"'
Autor:
Hedley J. Hansen, M. Attygalle, Martin Veasey, Jorg M. Hacker, Keith Mason, Andrew S. Kulessa, Alex Vanderklugt, Stephen J. Salamon, Alex Baldock
Publikováno v:
2018 International Conference on Radar (RADAR).
Anomalous propagation of microwave and millimetric radiation in the surface boundary layer makes assessment of radio wave systems difficult and subject to significant error due the variability of meteorological parameters. The validation of models re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::00c7b08109b8e58825476375065a434a
https://doi.org/10.1109/radar.2018.8557314
https://doi.org/10.1109/radar.2018.8557314
Publikováno v:
2018 International Conference on Radar (RADAR).
The paper presents a novel ultra-wideband (6 GHz), high resolution (0.16 ps) true time delay range-velocity gate pull off (RVGPO) deception technique that is effective against modern threat waveforms. It utilizes fractional sample delays that increas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e0442e016939fe794384445338a71944
https://doi.org/10.1109/radar.2018.8557261
https://doi.org/10.1109/radar.2018.8557261
Autor:
Dmitrii Stepanov, M. Attygalle
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 62:1381-1386
We present a simple linear photonic technique to achieve fixed or time-varying phase shifts in microwave to terahertz frequency band signals. We show that the wavelength change of an RF modulated optical carrier within the operational band of a photo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4e0eccd174330c62e67f7ed06645497
https://doi.org/10.1109/tmtt.2014.2321352
https://doi.org/10.1109/tmtt.2014.2321352
Publikováno v:
IEEE Photonics Journal, Vol 3, Iss 1, Pp 100-111 (2011)
The design and experimental performance of a 40-GHz microwave photonic link scheme developed for broadband analog signal transmission that exhibits an increased input dynamic range compared with conventional microwave photonic links is presented. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d5829a8b1793a8a24cbc6eaf73a667f
https://doi.org/10.1109/jphot.2011.2106200
https://doi.org/10.1109/jphot.2011.2106200
Autor:
Yang Jing Wen, Yong-Kee Yeo, Xiaofei Cheng, Zhaowen Xu, Tee Hiang Cheng, Chao Lu, Yixin Wang, Wen-De Zhong, M. Attygalle
Publikováno v:
Journal of Lightwave Technology. 27:2069-2076
We mathematically analyze and experimentally investigate the characteristics of subcarrier-modulated (SCM) light. Our investigation shows that the baseband data are also carried on the optical carrier after subcarrier modulation. This residual data i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::442615d6ef9191fbb2e4db49f0893ec2
https://doi.org/10.1109/jlt.2008.2006694
https://doi.org/10.1109/jlt.2008.2006694
Autor:
Zhaowen Xu, Xiaofei Cheng, Wen-De Zhong, M. Attygalle, Chao Lu, Yixin Wang, Tee Hiang Cheng, Yang Jing Wen
Publikováno v:
Journal of Lightwave Technology. 25:3669-3677
We propose two novel wavelength-division-multiplexed passive-optical-network (WDM-PON) architectures where subcarriers are employed to transmit downstream data and optical carriers are reused for upstream transmission. Architecture I is designed for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6948bea9676ba1fcf06c14f9f88c0b3
https://doi.org/10.1109/jlt.2007.909341
https://doi.org/10.1109/jlt.2007.909341
Publikováno v:
2015 IEEE Global Electromagnetic Compatibility Conference (GEMCCON).
In this paper we present an autonomous wide band adaptive interference canceller solution that alleviates the problem of performance degradation of an electronic support system (ESS) operating in a high interference RF environment. The interference c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11f645492fdf3696da0920413a45d3aa
https://doi.org/10.1109/gemccon.2015.7386828
https://doi.org/10.1109/gemccon.2015.7386828
Autor:
Andrew S. Kulessa, W. Marwood, G. Knight, Jorg M. Hacker, Brian Jones, M. Attygalle, Hedley J. Hansen
Publikováno v:
2015 USNC-URSI Radio Science Meeting (Joint with AP-S Symposium).
The reliable prediction of RF system performance depends on the morphology of the tropospheric environment. For instance, the performance of systems, operating at frequencies above 10 GHz, are particularly affected by hydrometeor scattering and molec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dda746f30689fdcc38992e038ff4cb9b
https://doi.org/10.1109/usnc-ursi.2015.7303567
https://doi.org/10.1109/usnc-ursi.2015.7303567
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 54:2181-2187
In this paper, we investigate the optimum carrier-to-sideband ratio (CSR) for maximizing the transmission performance of an optically modulated millimeter-wave signal in a fiber-wireless system via experiment, theory, and simulation. We present a sim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63144925df9fabc98bd16dc8995a5c8b
https://doi.org/10.1109/tmtt.2006.872809
https://doi.org/10.1109/tmtt.2006.872809
Publikováno v:
Journal of Lightwave Technology. 24:1955-1967
This paper proposes and experimentally demonstrates an automatic-protection-switching (APS) mechanism against distribution fiber breaks in passive optical networks (PONs). The protection of optical-network units (ONUs) that are located at the custome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07a9fa72135e9b415c22e229aba6be48
https://doi.org/10.1109/jlt.2006.872275
https://doi.org/10.1109/jlt.2006.872275