本刊英文版Vol.32(2016),No.1论文摘要(英文) |
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摘 要: | 正New Results on Nonexistence of Perfect p-Ary Sequences and Almost p-Ary Sequences Hal Ying LIU Ke Qin FENG Abstract Complex periodical sequences with lower autocorrelation values are used in CDMA communication systems and cryptography.In this paper we present new nonexistence results on perfect p-ary sequences and almost p-ary sequences and related difference sets by using some knowledge on cyclotomic fields and their subfields.
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