Hybrid low autocorrelation sequences (Corresp.)

Skew-symmetric sequences of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">(2n + 1)</tex> terms, <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">a_0,a_1,⋯,a₂ₙ</tex> , are described for which the "merit factor" {equation} F_h = {[∑ᵢ₌₀²ⁿ a_i ] ^2}{ 2 ∑ₖ₌₁²ⁿ [ ∑ᵢ₌₀²ⁿ⁻ᵏ sign (a_i) · aᵢ₊ₖ ] ^2} {equation} is unusually high.