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The Direction of Arrival (DoA) estimation of signals impinging on a failed antenna array is approached as an optimization problem and solved by using particle swarm optimization (PSO) technique with single snapshot. The performance and usefulness of this algorithm is analyzed under different failure scenarios and also in different noisy environment. In this paper we have made a study on the tolerance...
This The efficiency and effectiveness of two bio-inspired computational techniques, viz. particle swarm optimization (PSO) and bacteria foraging optimization (BFO) with respect to the convergence of the iterative process and time of computation is studied in this work for array failure correction.
In large antenna arrays possibility of getting faults for some of the radiating elements can not be denied at all the times. In such situations the pattern of the array gets distorted, mostly with an increasing side lobe level (SLL). In this paper a cost effective and simple compensation technique using particle swarm optimization (PSO) is presented. This approach is carried out by optimizing the...
Creation of nulls in specified directions is desirable in order to reduce the effect of interfering signals. But in large antenna arrays there possibility of getting a fault from some of the radiating elements can not be denied. In such a situation, the pattern of the array get distorted mostly with an increasing sidelobe level and removable of the null from its desired position. In this paper a method...
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