New quaternary sequences with optimal autocorrelation
Young-Sik Ki m, Ji-Woong Jang, Sang‐Hyo Kim, Jong‐Seon No · 2009
We propose a new construction of quaternary sequences using the reverse Gray mapping of a pair of binary Sidel'nikov sequences. The proposed construction provides sequences of even period N with the maximum nontrivial auto-correlation magnitude, Rmax= 2. For N ≡ 0 mod 4, the new quaternary sequences have the optimal Rmax= 2 and are almost-balanced in contrast to the only earlier optimal construction Sj[1].