Almost-perfect quadriphase sequences
A new class of quadriphase sequences of length N = p(J) + 1 equivalent to 2 mod 4(p odd prime, J = 1, 2,...) is presented. These almost-perfect sequences have a periodic autocorrelation function circle dot (tau) which vanishes for all tau not equivalent to 0mod (N/2).
quadriphase sequences almost-perfect sequences correlation sequences quaternary sequences