Shared Aperture Multibeam Forming of Time-Modulated Linear Array
A novel technique is proposed in this paper for shared aperture multibeam forming in a complex time-modulated linear array. First, a uniform line array is interleaved randomly to form two sparse array subarrays. Subsequently, the theory of time modulation for linear arrays is applied in the construc...
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Series: | Complexity |
Online Access: | http://dx.doi.org/10.1155/2019/4101909 |
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doaj-3ccde9100ef249c481b7f1b339366daa2020-11-25T00:43:24ZengHindawi-WileyComplexity1076-27871099-05262019-01-01201910.1155/2019/41019094101909Shared Aperture Multibeam Forming of Time-Modulated Linear ArrayLi-juan Sun0Zhen-kai Zhang1Hamid Esmaeili Najafabadi2College of Electronics Information, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaCollege of Electronics Information, Jiangsu University of Science and Technology, Zhenjiang 212003, ChinaDepartment of Electrical and Computer Engineering, University of Calgary, Calgary ABT2N1N4, CanadaA novel technique is proposed in this paper for shared aperture multibeam forming in a complex time-modulated linear array. First, a uniform line array is interleaved randomly to form two sparse array subarrays. Subsequently, the theory of time modulation for linear arrays is applied in the constructed subarrays. In the meantime, the switch-on time sequences for each element of the two subarrays are optimized by an optimized differential evolution (DE) algorithm, i.e., the scaling factor of the sinusoidal iterative chaotic system and the adaptive crossover probability factor are used to enhance the diversity of the population. Lastly, the feasibility of the new technique is verified by the comparison between this technique and the basic multibeam algorithm in a shared aperture and the algorithm of iterative FFT. The results of simulations confirm that the proposed algorithm can form more desired beams, and it is superior to other similar approaches.http://dx.doi.org/10.1155/2019/4101909 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Li-juan Sun Zhen-kai Zhang Hamid Esmaeili Najafabadi |
spellingShingle |
Li-juan Sun Zhen-kai Zhang Hamid Esmaeili Najafabadi Shared Aperture Multibeam Forming of Time-Modulated Linear Array Complexity |
author_facet |
Li-juan Sun Zhen-kai Zhang Hamid Esmaeili Najafabadi |
author_sort |
Li-juan Sun |
title |
Shared Aperture Multibeam Forming of Time-Modulated Linear Array |
title_short |
Shared Aperture Multibeam Forming of Time-Modulated Linear Array |
title_full |
Shared Aperture Multibeam Forming of Time-Modulated Linear Array |
title_fullStr |
Shared Aperture Multibeam Forming of Time-Modulated Linear Array |
title_full_unstemmed |
Shared Aperture Multibeam Forming of Time-Modulated Linear Array |
title_sort |
shared aperture multibeam forming of time-modulated linear array |
publisher |
Hindawi-Wiley |
series |
Complexity |
issn |
1076-2787 1099-0526 |
publishDate |
2019-01-01 |
description |
A novel technique is proposed in this paper for shared aperture multibeam forming in a complex time-modulated linear array. First, a uniform line array is interleaved randomly to form two sparse array subarrays. Subsequently, the theory of time modulation for linear arrays is applied in the constructed subarrays. In the meantime, the switch-on time sequences for each element of the two subarrays are optimized by an optimized differential evolution (DE) algorithm, i.e., the scaling factor of the sinusoidal iterative chaotic system and the adaptive crossover probability factor are used to enhance the diversity of the population. Lastly, the feasibility of the new technique is verified by the comparison between this technique and the basic multibeam algorithm in a shared aperture and the algorithm of iterative FFT. The results of simulations confirm that the proposed algorithm can form more desired beams, and it is superior to other similar approaches. |
url |
http://dx.doi.org/10.1155/2019/4101909 |
work_keys_str_mv |
AT lijuansun sharedaperturemultibeamformingoftimemodulatedlineararray AT zhenkaizhang sharedaperturemultibeamformingoftimemodulatedlineararray AT hamidesmaeilinajafabadi sharedaperturemultibeamformingoftimemodulatedlineararray |
_version_ |
1725278609199857664 |