IRE Transactions on Communications Systems · 1975 · 860 citations · 0 references
EngineeringCommunicationElectrical EngineeringDigital CommunicationInformation TheoryWireless CommunicationsChannel CodingDigital Signal ProcessingDistortion AnalysisModulationConvergenceEqualizationFrequency Division Multiple AccessModulation Techniques
A self‑recovering equalizer is needed to transmit time‑division multiplexed voice or picturephone PCM signals over existing frequency‑division multiplexed channels. The paper presents a self‑recovering equalization algorithm for multilevel amplitude‑modulated data transmission. Convergence of the algorithm is demonstrated via computer simulation and supported by theoretical analysis. The resulting equalizer is as simple as a conventional binary equalizer.
A self-recovering equalization algorithm, which is employed in multilevel amplitude-modulated data transmission, is presented. Such a self-recovering equalizer has been required when time-division multiplexed (TDM) voice or picturephone PCM signals must be transmitted over the existing frequency-division multiplexed (FDM) transmission channel. The present self-recovering equalizer is quite simple, as is a conventional binary equalizer. The convergence processes of the present self-recovering equalizer are shown by computer simulation. Some theoretical considerations on this convergence process are also added.