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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