Synthesis of Sparse Uniformly Excited Concentric Ring Arrays Using the Chaos Sparrow Search Algorithm

In this paper, an effective synthesis method for sparse uniformly excited concentric ring array (CRA) element positions featuring a minimum sidelobe level (SLL) is presented. This based on the chaos sparrow search algorithm (CSSA), which can optimal solution under multiple constraints. By improving constraint number of elements each ring, range further reduced, and global ability effectively improved by introducing tent mapping into to initialize population. Numerical examples are presented assess effectiveness reliability proposed method, showing that it achieve better results than existing methods in design arrangements.