Abstract
Sequences with low correlation have important applications in communications, radar, cryptography, and also in compressed sensing. The ultimate objective of this paper is to design a new family of polyphase sequences with low correlation. Our main contribution is the construction of such a family using additive and multiplicative characters over Galois rings. The proposed sequences have lengths N = pm − 1, family size M = pkm − 1, and a maximum magnitude \(\theta _{\max \limits }=p^{k-1}\sqrt {p^{m}}\), where k is an integer with 1 ≤ k < m.
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Acknowledgements
The authors deeply thank the Associate Editor and the anonymous reviewers for their valuable comments which have improved the quality and the presentation of the paper. The work of Z. Gu and Z. Zhou was supported by the National Natural Science Foundation of China (NSFC) project under Grant 62071397.
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Gu, Z., Zhou, Z., Mesnager, S. et al. A new family of polyphase sequences with low correlation. Cryptogr. Commun. 14, 135–144 (2022). https://doi.org/10.1007/s12095-021-00522-x
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DOI: https://doi.org/10.1007/s12095-021-00522-x