Title :
Evaluation of nonperiodic autocorrelation parameters for maximal-length sequences
Author_Institution :
Norwegian Defence Research Establishment, Kjeller, Norway
Abstract :
A spread-spectrum communication system using binary p.s.k. modulation often applies m-sequences as sub-baud codes for bandwidth expansion. In this situation one tries to minimise the probability of false synchronisation and prevent multipath distortion choosing sequences with suitable nonperiodic autocorrelation functions. Formulas for bounding the autocorrelation parameters are discussed. The letter also presents a table of `worst¿ and `best¿ m-sequences of period 15¿1023.
Keywords :
binary sequences; correlation theory; phase shift keying; binary PSK modulation; m-sequences; maximal length sequences; nonperiodic autocorrelation parameters; spread spectrum communication system;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19780226
