The linear complexity of balanced quaternary sequences with optimal autocorrelation value

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Tang et al. and Lim et al. presented ways to construct balanced quaternary sequences with even period and optimal autocorrelation value by inverse Gray-mapping of binary sequences with optimal autocorrelation value. In this article, we consider quaternary sequences constructed from binary Legendre or Hall's sextic sequence by these methods. We derive the linear complexity of series of balanced quaternary sequences with optimal autocorrelation value over the finite ring of four elements.