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The Constructions of Mismatched Filtering of Periodic Quadriphase Sequences with Even Length Xiuping PENG Chengqian XU Jiadong REN Kai LIU Publication IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences Vol.E99-A No.9 pp.1735-1739 Publication Date: 2016/09/01 Online ISSN: 1745-1337 DOI: 10.1587/transfun.E99.A.1735 Type of Manuscript: LETTER Category: Coding Theory Keyword: quadriphase sequences, cross-correlation sequences, mismatched filtering, Full Text: PDF(78.3KB)>>
Summary: Quadriphase sequences with good correlation properties are required in higher order digital modulation schemes, e.g., for timing measurements, channel estimation or synchronization. In this letter, based on interleaving technique and pairs of mismatched binary sequences with perfect cross-correlation function (PCCF), two new methods for constructing quadriphase sequences with mismatched filtering which exist for even length N ≡ 2(mod4) are presented. The resultant perfect mismatched quadriphase sequences have high energy efficiencies. Compared with the existing methods, the new methods have flexible parameters and can give cyclically distinct perfect mismatched quadriphase sequences. | ||||||||||
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