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Publication of NO20083335LpublicationCriticalpatent/NO20083335L/en
Application filed by Qualcomm IncfiledCriticalQualcomm Inc
Priority to NO20083335ApriorityCriticalpatent/NO20083335L/en
Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo
(AREA)
Abstract
Apparater for en sender og en mottaker (202) for å bedre ytelsen av et systems koherente demodulasjon ved å utnytte ikke-pilotsubkanaler for å bedre nøyaktigheten av estimater for amplitude og fasestøy i en transmisjonskanal (8). Denne bedring utføres ved å utnytte de korrigerte mottatte data via en fundamentalkanal for å sikre et best mulig pilotkanalestimat, og dette estimat brukes deretter av en skalarproduktmodul (208) ved demodulasjon av en supplementær datakanal.Apparatus for a transmitter and a receiver (202) to improve the performance of a system's coherent demodulation by utilizing non-pilot subchannels to improve the accuracy of amplitude and phase noise estimates in a transmission channel (8). This improvement is accomplished by utilizing the corrected received data via a fundamental channel to ensure the best possible pilot channel estimate, and this estimate is then used by a scalar product module (208) in demodulation of a supplementary data channel.
NO20083335A2008-07-292008-07-29
Estimation of amplitude and phase in a noisy communication system
NO20083335L
(en)