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Quadriphase Z-Complementary Sequences Xudong LI Pingzhi FAN Xiaohu TANG Li HAO Publication IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E93-A No.11 pp.2251-2257 Publication Date: 2010/11/01 Online ISSN: 1745-1337 DOI: 10.1587/transfun.E93.A.2251 Print ISSN: 0916-8508 Type of Manuscript: Special Section PAPER (Special Section on Signal Design and its Application in Communications) Category: Sequences Keyword: Z-complementarity, mates, quadriphase sequences, elementary transformations, elementary operations, zero correlation zone, Full Text: PDF(327.2KB)>>
Summary: 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 maximum 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 analyzing the relations among the formulas relative to sets of quadriphase Z-complementary sequences and for describing the sets are proposed. The existence 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. | ||||||||||
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