Thinned linear array using joint optimization of IWDO/FFT algorithm

A sparse array synthesis method based on improved wind-driven optimization algorithm (IWDO) and fast Fourier transform (FFT) for the purpose of sidelobe suppression was introduced. First, the uniform linear array was sparse by the FFT algorithm. Then the amplitude excitation weighting of array eleme...

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Vydáno v:Journal of electromagnetic waves and applications Ročník 35; číslo 18; s. 2480 - 2491
Hlavní autoři: Li, Cheng-Zhang, Li, Hai-Ming
Médium: Journal Article
Jazyk:angličtina
Vydáno: Taylor & Francis 12.12.2021
Témata:
antenna sparse
fast Fourier transform algorithm
sidelobe suppression
Wind-driven optimization algorithm
ISSN:0920-5071, 1569-3937
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Shrnutí:A sparse array synthesis method based on improved wind-driven optimization algorithm (IWDO) and fast Fourier transform (FFT) for the purpose of sidelobe suppression was introduced. First, the uniform linear array was sparse by the FFT algorithm. Then the amplitude excitation weighting of array elements was optimized by IWDO algorithm based on probability factor chaotic map. During the optimization process, the minimum peak sidelobe level was used as the fitness function. By comparing with the simulation results of classic Chebyshev weighting method, the method proposed in this paper has better performance.
ISSN:0920-5071
1569-3937
DOI:10.1080/09205071.2021.1952902