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Mostrando ítems 1-4 de 4

Dual Photonic Generation Ultrawideband Impulse Radio by Frequency Shifting in Remote-Connectivity Fiber

Beltrán Ramírez, Marta; Llorente Sáez, Roberto (Institute of Electrical and Electronics Engineers (IEEE), 2011)

[EN] An impulse-radio ultrawideband (UWB) photonic generation technique based on frequency shifting in the remote connectivity fiber in optical access networks is proposed and analyzed in this paper. This technique is based ...
Experimental analysis of 60-GHz VCSEL and ECL photonic generation and transmission of impulse-radio Ultra-Wideband signals

Beltrán Ramírez, Marta; Jensen, Jesper Bevensee; Llorente Sáez, Roberto; Monroy, Idelfonso Tafur (Institute of Electrical and Electronics Engineers (IEEE), 2011-08-01)

[EN] Optical generation of impulse-radio ultra-wideband (UWB) signals in the 60-GHz band is proposed and experimentally demonstrated. External-cavity laser (ECL) and vertical-cavity surface-emitting laser (VCSEL) is employed ...
Novel photonic analog-to-digital converter architecture for precise localization of ultra-wide band radio transmitters

Llorente, Roberto; Morant, Maria; Amiot, Nicolas; Uguen, Bernard (Institute of Electrical and Electronics Engineers (IEEE), 2011-06-06)

[EN] A novel photonic analog-to-digital converter (ADC) architecture tailored for the localization of transmitters employing ultra-wide band (UWB) radio technology is proposed and experimentally demonstrated in this paper. ...
Performance of a 60-GHz DCM-OFDM and BPSK-Impulse ultra-wideband system with radio-over-fiber and wireless transmission employing a directly-modulated VCSEL

Beltrán, Marta; Jensen, Jesper Bevensee; Yu, Xianbin; Llorente, Roberto; Rodes, Roberto; Ortsiefer, Markus; Neumeyr, Christian; Monroy, Idelfonso Tafur (Institute of Electrical and Electronics Engineers (IEEE), 2011-06-06)

[EN] The performance of radio-over-fiber optical transmission employing vertical-cavity surface-emitting lasers (VCSELs), and further wireless transmission, of the two major ultra-wideband (UWB) implementations is reported ...

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