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Efficient DFT of Zadoff-Chu sequences

Efficient DFT of Zadoff-Chu sequences

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Closed-form expressions for the discrete Fourier transform (DFT) of cyclically shifted Zadoff-Chu sequences of arbitrary length are presented. These expressions allow for a very efficient DFT implementation based only on the elements of the corresponding already generated basic (non-cyclically-shifted) ZC sequence.

Inspec keywords: discrete Fourier transforms; sequences

Other keywords: cyclically shifted Zadoff-Chu sequences; discrete Fourier transform; closed-form expressions

Subjects: Integral transforms; Information theory

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