Almost Quadriphase Sequences with Even Period and Low Autocorrelation
Xiuping Peng, XU Cheng-qian, Kai Liu · IEICE Transactions on Fundamentals of Electronics Communications and Computer Sciences · 2012
A new class of almost quadriphase sequences with four zero elements of period 4N, where N ≡ 1(mod 4) being a prime, is constructed. The maximum nontrivial autocorrelations of the constructed almost quadriphase sequences are shown to be 4.