Three constructions of Golay complementary array sets

<p style='text-indent:20px;'>Recently, two-dimensional (2-D) arrays with good correlation have been used in MIMO systems. In this paper, we investigate new 2-D Golay complementary array sets (GCASs), whose aperiodic auto-correlation sums are zero for all nonzero shifts. Firstly, based on the generalized Boolean functions, propose a direct construction of GCASs. Secondly, using horizontal concatenation, give two indirect constructions The proposed can provide lot GCASs flexible parameters.</p>