Research on Distributed Nested Array Pattern Synthesis

In this paper, a method of grating lobes and sidelobes suppression for distributed two-level nested array is presented. The method combines the distributed nested array structure and the pattern product theorem to obtain a distributed two-level nested array two-way pattern, which can effectively suppress the grating lobes and sidelobes. The Chebyshev window is used to design the weights of the transmit array pattern to achieve ultralow sidelobes performance. Numerical simulations are provided for testing the proposed method. Simulation results demonstrate the effectiveness of the proposed method, which will help to improve the detection performance of radar.