Copyright © 2011 Dragomir Ž. Ðoković. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Base sequences are quadruples of -sequences, with and of length and and of length , such that the sum of their nonperiodic autocorrelation functions is a -function. Normal sequences are base sequences such that . We introduce a definition of equivalence for normal sequences and construct a canonical form. By using this canonical form, we have enumerated the equivalence classes of for .