# Arrays over roots of unity with perfect autocorrelation and good ZCZ cross-correlation

@article{Blake2013ArraysOR, title={Arrays over roots of unity with perfect autocorrelation and good ZCZ cross-correlation}, author={Samuel T. Blake and Thomas E. Hall and Andrew Z. Tirkel}, journal={Adv. Math. Commun.}, year={2013}, volume={7}, pages={231-242} }

We present a new construction for two-dimensional, perfect autocorrelation arrays
over roots of unity. These perfect arrays are constructed from a block of perfect column
sequences. Other blocks are constructed from the first block, to generate a block-circulant
structure. The columns are then multiplied by a perfect sequence over roots of unity, which,
when folded into an array commensurate with our block width has the array orthogonality
property. The size of the arrays is commensurate…

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