Skew-symmetric sequences of terms, , are described for which the "merit factor" begin{equation} F_h = frac{biggl[sum_{i=0}^{2n} mid a_i mid biggr] ^2}{ 2 sum_{k=1}^{2n} biggl[ sum_{i=0}^{2n-k} text{sign} (a_i) cdot a_{i+k} biggl] ^2} end{equation} is unusually high.
Keywords :
Correlation functions; Sequences; Autocorrelation; Data compression; Error probability; Least squares methods; Pattern recognition; Rate distortion theory; Telecommunications; Testing; Upper bound; Wiener filter;