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Optical signal design using reciprocal periodic sequences

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3 Author(s)
Al-Dabbagh, A. ; Sch. of Electron. & Electr. Eng., Leeds Univ., UK ; O'Farrell, T. ; Darnell, M.

A novel method, based on the theory of reciprocal sequences, is described for generating a pair of sequences whose periodic convolution is impulsive. It is proved that any binary unipolar m-sequence and its level-shifted bipolar representation form a reciprocal pair. The extension of the synthesis technique to multi-level sequences is then demonstrated, examples of code designs being given to demonstrate the technique. The unipolar sequences can be used to modulate optical carriers

Published in:

Electronics Letters  (Volume:34 ,  Issue: 20 )