Direction-Finding Using Co-prime Array under Impulsive Noise Article Swipe

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Xiang Sha , Guolong Cui ·

YOU? · · 2022 · Open Access · · DOI: https://doi.org/10.1155/2022/3421682 · OA: W4297686886

In order to achieve more accurate estimates of the existing direction-finding approaches under impulsive noise, a robust direction-finding algorithm using a coprime array is proposed in this work. In order to suppress the strong impulsive noise, we introduce an infinite norm normalization approach, and on this basis, a weighted signal subspace fitting equation using a coprime array is derived. Furthermore, we propose a quantum-inspired moth-flame algorithm to minimize the derived weighted signal subspace fitting function. Simulation results represent that our direction-finding method has the most excellent performance compared to other conventional methods. Besides, our method can address coherent sources without any additional approach.