Abstract:

Based on two-dimensional (2-D) binary periodic complementary array set (PCAS) and shift sequence, a 2-D quaternary PCAS with zero correlation zone (ZCZ) is constructed by using inverse Gray mapping. The proposed array sets comprise a number of subsets, and each subset is a quaternary ZCZ periodic complementary array set (ZPCAS), different array subsets are orthogonal complementary. The shift operation can be performed in the row or column of the array, which leads to more 2-D quaternary ZPCASs with different parameters. Meanwhile, because of freely choosing the parameters of the corresponding row (column) of the rectangular ZCZ, different shift sequence sets can be obtained, and thereby more proposed array sets can be constructed. Construction results illustrate that the proposed method effectively increases the number of array signals in practical application.