PULSE SHAPE OPTIMIZATION AND CHANNEL EQUALIZATION FOR TELETEXT TRANSMISSION OVER MULTIPATH CHANNELS.

Sheau B. Ng; Dipankar Raychaudhuri

doi:10.1109/TCE.1985.289999

PULSE SHAPE OPTIMIZATION AND CHANNEL EQUALIZATION FOR TELETEXT TRANSMISSION OVER MULTIPATH CHANNELS.

Sheau B. Ng, Dipankar Raychaudhuri

School of Engineering, Electrical & Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A study of teletext transmission over multipath channels is reported. Computer simulated results are used to measure the performance of various Nyquist pulses. An optimal pulse shape for teletext transmission is obtained. The multipath channel parameters are modeled as random variables. A simple multipath cancellation scheme in which the estimated delay signal is subtracted from the received signal using a feedback system is developed. The amount of delay is initialized to the estimated value from a matched-filter-estimator. The delay is then adaptively adjusted to maximize the eye opening. A significant gain in signal performance is found to be obtainable from this equalizer.

Original language	English (US)
Journal	IEEE Transactions on Consumer Electronics
Volume	CE-31
Issue number	4
DOIs	https://doi.org/10.1109/TCE.1985.289999
State	Published - Jan 1 1985

All Science Journal Classification (ASJC) codes

Media Technology
Electrical and Electronic Engineering

Access to Document

10.1109/TCE.1985.289999

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title = "PULSE SHAPE OPTIMIZATION AND CHANNEL EQUALIZATION FOR TELETEXT TRANSMISSION OVER MULTIPATH CHANNELS.",

abstract = "A study of teletext transmission over multipath channels is reported. Computer simulated results are used to measure the performance of various Nyquist pulses. An optimal pulse shape for teletext transmission is obtained. The multipath channel parameters are modeled as random variables. A simple multipath cancellation scheme in which the estimated delay signal is subtracted from the received signal using a feedback system is developed. The amount of delay is initialized to the estimated value from a matched-filter-estimator. The delay is then adaptively adjusted to maximize the eye opening. A significant gain in signal performance is found to be obtainable from this equalizer.",

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