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Proceedings Paper

Design and realization of a suboptimum presynchronization filtering strategy for optical receivers
Author(s): A. Hussain; Jaafar M. H. Elmirghani; Robert A. Cryan
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Paper Abstract

The optimum presynchronization filter for a pulse position modulation (PPM) signal is composed of a matched filter in cascade with a derivative network. This paper addresses the problem of realizing such a filter for detecting the temporal position of a pulse used in the optical fiber PPM scheme. Firstly, a matched filter is realized from a time domain specification on the received pulse shape. Secondly, a derivative network is used to shape the pulse. The effect of the derivative network on the pulse shape is investigated by varying the value of the differentiating capacitor Cd and observing changes in the timing variance and jitter wrong slot error (JWSE) probability. The paper shows that there exist an optimum value of Cd for which the pulse shape is as close as possible to the true derivative and one which offers significant improvement both in the timing variance and JWSE probability compared to that of the matched filter.

Paper Details

Date Published: 1 December 1995
PDF: 10 pages
Proc. SPIE 2614, All-Optical Communication Systems: Architecture, Control, and Network Issues, (1 December 1995); doi: 10.1117/12.227819
Show Author Affiliations
A. Hussain, Univ. of Northumbria/Newcastle (United Kingdom)
Jaafar M. H. Elmirghani, Univ. of Northumbria/Newcastle (United Kingdom)
Robert A. Cryan, Univ. of Northumbria/Newcastle (United Kingdom)


Published in SPIE Proceedings Vol. 2614:
All-Optical Communication Systems: Architecture, Control, and Network Issues
Vincent W. S. Chan; Robert A. Cryan; John M. Senior, Editor(s)

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