Proceedings ArticleDOI
Array failure correction with orthogonal method
TLDR
In this paper, the orthogonal method is used to improve the patterns of the linear array in the presence of failed elements, which can partially compensate for the failed elements and thus reduce the sidelobe level.Abstract:
The orthogonal method is used to improve the patterns of the linear array in the presence of failed elements. Reconfiguration of the amplitude and phase distributions of the remaining elements can partially compensate for the failed elements and thus reduce the sidelobe level. Numerical results are presented to illustrate the effectiveness of the method. The effect of the number of failed elements, the distance between the elements and the shape of the desired pattern is demonstrated through this paper.read more
Citations
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Journal ArticleDOI
A linear antenna array failure correction using firefly algorithm
TL;DR: Numerical example of large number of element failure correction is presented to show the capability of this Fire∞y Algorithm approach to antenna array failure.
Journal ArticleDOI
Genetic Design of Dual-band, Switched-beam Dipole Arrays, with Elements Failure Correction, Retaining Constant Excitation Coefficients
TL;DR: In this paper, the authors proposed a genetic algorithm (GA) to preserve universal, constant excitation coefficients during dual-band operation, regardless of element failure or frequency of operation.
Journal ArticleDOI
A linear antenna array failure correction using improved bat algorithm
TL;DR: In this paper, an improved flexible approach that use bat algorithm is proposed and applied to solve the problem of antenna array failure by controlling only the amplitude excitation of array elements, which improves the quality of the solution and the speed of convergence.
Journal ArticleDOI
A Linear Antenna Array Failure Correction with Null Steering using Firefly Algorithm
TL;DR: In this article, the problem of linear antenna array failure has been addressed with multiple wide band null steering using firefly algorithm (FA) by controlling the amplitude and phase excitation of array elements.
Journal ArticleDOI
A Non-Uniform Circular Antenna Array Failure Correction Using Firefly Algorithm
TL;DR: The problem of circular antenna array failure is mitigated using firefly algorithm (FA) by controlling the amplitude excitation of array elements by controlling a fitness model to obtain the error between pre-failed sidelobe power pattern and measured sidelobePower pattern.
References
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Journal ArticleDOI
Array failure correction with a genetic algorithm
Beng-Kiong Yeo,Yilong Lu +1 more
TL;DR: A flexible approach using the genetic algorithm (GA) is proposed for array failure correction in digital beamforming of arbitrary arrays, and three mating schemes, adjacent-fitness-paring, best-mate-worst, and emperor-selective are proposed and their performances are studied.
Journal ArticleDOI
A conjugate gradient-based algorithm to minimize the sidelobe level of planar arrays with element failures
TL;DR: In this article, a conjugate gradient method is used to minimize the ratio of the average peak sidelobe power level to the power in the main beam, taking into account the defective elements.
Journal ArticleDOI
Practical failure compensation in active phased arrays
TL;DR: A practical failure compensation technique for active phased arrays that is capable of achieving substantial performance improvement across broad selectable angular sectors at the expense of some additional performance degradation in other less important sectors.
Journal ArticleDOI
Orthogonal Advanced Methods for Antennas: the ORAMA computer tool
TL;DR: A computer tool for the synthesis of linear antenna arrays is presented that has been designed as a Windows MDI application for the academic classroom, as well as for professional antenna engineers.
Proceedings ArticleDOI
Comparison of reconfigurable methods of active phased array antenna
S.Z. Bu,Afshin S. Daryoush +1 more
TL;DR: From both the theoretical and the practical viewpoint, the phase-only beam shaping technique provides the most suitable method for the optimum reconfigured phased array.