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porteuse en quadrature

quadrature carrier

électronique et électrotechnique - iate.europa.eu

Le deuxième mélangeur (410b) reçoit et module un signal de porteuse en quadrature et un deuxième signal d'informations (QIN).

The second mixer (410b) receives and modulates a quadrature carrier signal with a second information signal (QIN).

électronique et électrotechnique - wipo.int

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Combinaison de moments d'ordre 2 et 4 pour la classification de modulations linéairesCet article traite de la classification des modulations linéaires de phase à 4 états (MDP4) et d'amplitude sur porteuse en quadrature à 16 états (MAQ16)...

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Wavelet based hilbert transform with digital design and application to qcm-ss watermarking... Moreover, Hilbert transform finds various applications in communications and signal processing such as generation of single sideband (SSB) modulation, quadrature carrier multiplexing (QCM) and bandpass representation of a signal...

général - core.ac.uk - PDF: core.ac.ukgénéral - core.ac.uk - PDF: core.ac.uk

A closed-form approximated expression for the residual isi obtained by blind adaptive equalizers with gain equal or less than oneIn this paper we propose for the real and two independent quadrature carrier case, a closed-form approximated expression for the achievable residual Inter-Symbol Interference (ISI) that depends on the step-size parameter, equalizer’s tap length, equalized output gain, input signal statistics, channel power and SNR...

PDF: core.ac.uk

International journal of high speed electronics and systems © world scientific publishing company recent advances and design trends in cmos radio frequency integrated circuits... For quadrature carrier generation, the degeneration-injected QVCO is superior to the cascode-injected QVCO both in terms of phase noise and tuning range...

PDF: citeseerx.ist.psu.edu

Generalized pairwise complementary codes with set-wise uniform interference-free... The GPC codes work in pairs and can fit extremely power efficient quadrature carrier modems...

PDF: citeseerx.ist.psu.edu

Driving of parametric loudspeakers...; A modulator (309) quadrature modulates the complex base band signal on an ultrasonic quadrature carrier and an output circuit (311) drives the ultrasound transducer (301) from the modulated signal...

PDF: www.loc.gov