Quadriphase Z-Complementary Sequences
Aperiodic quadriphase Z complementary sequences which include the conventional complementary sequences as special cases are Introduced It is shown that the aperiodic quadriphase Z complementary pairs are normally better than binary ones of the same length in terms of the number of Z complementary pairs and the maxi mum zero correlation zone New notions of elementary transformations on quadriphase sequences and elementary operations on sets of quadriphase Z complementary sequences are presented In particular new methods for an alyzing the relations among the formulas relative to sets of quadriphase Z complementary sequences and for describing the sets are proposed The ex istence problem of Z complementary pairs of quadriphase sequences with zero correlation zone equal to 2 3 and 4 is investigated Constructions of sets of quadriphase Z complementary sequences and their mates are given
quadriphase sequences z complementary correlation zone elementary elementary transformations mates operations zero