Paper Details: Downloads: 518
Serial Number: P1110950101
Title: Improved Nyquist filters using interpolation with sine functions
Authors: Nicolae Dumitru Alexandru and Sorin Pohoata
Abstract: This paper investigates a novel approach for constructing a family of ISI-free pulses that equal or outperform some recently proposed pulses in terms of ISI performance in the presence of sampling errors. We propose a new family of improved Nyquist filters derived from an ideal staircase frequency characteristic using interpolation with sine functions. The performances of new ISI-free pulses are studied with respect to the ISI error probability. This family provides flexibility in designing an appropriate pulse even after the roll-off factor has been chosen. The results for error probability outperform the 4th degree polynomial pulse for a reasonable number of interpolation intervals. The proposed pulses for were also investigated for OFDM use including DVB systems in order to reduce their sensitivity to frequency offset. The results presented in this paper equal those of recently found pulses in terms of intercarrier interference (ICI) power
Keywords: DVB, Nyquist filter, improved impulse response
Journal/Conference: International Journal of Automatic Control and System Engineering
Volume: 9
Issue: 3
Submission Date: 6/1/2009 12:00:00 AM
Review Date: 10/1/2009 12:00:00 AM
Publishing Date: 12/11/2009 12:00:00 AM
Article Downloads: 518
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