Synthesis of antenna arrays using genetic algorithms

Marcano, D.; Jiménez, María Isabel Martín; Duran, F.; Chang, Oscar

doi:10.1109/iccdcs.1995.499170

Cited by 18 publications

(10 citation statements)

References 9 publications

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“…When optimizing the ( u , v ) coverage of antenna arrays, one has to cope with multiple local minima. To tackle this issue we employed a genetic algorithm (GA) [ Haupt , 1995; Marcano and Duràn , 2000]. We use the differential entropy H diff of the probability density of the ( u , v ) samples as a metric of the uniformity of their distribution.…”

Section: System Designmentioning

confidence: 99%

“…Section 3 presents a discussion of the considerations involved in the system design and the advantages of rotational scanning over linear scanning are shown. Antenna arrays are optimized by use of a genetic algorithm (GA) [ Haupt , 1995; Marcano and Duràn , 2000] for maximally uniform ( u , v ) coverage after rotational scanning. The imaging performances of the array are assessed using simulated millimeter‐wave scenes and are compared with those achieved with a conventional power law Y‐shaped array.…”

Section: Introductionmentioning

confidence: 99%

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Array rotation aperture synthesis for short‐range imaging at millimeter wavelengths

2009

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[1] Millimeter-wave interferometric synthetic aperture imagers are currently being developed for short-range applications such as concealed weapons detection. In contrast to the traditional snapshot imaging approach, we investigate the potential of mechanical scanning between the scene and the array in order to reduce the number of antennas and correlators. We assess the trade-off between this hardware reduction, the radiometric sensitivity and the imaging frame rate of the system. We show that rotational scanning achieves a more uniform coverage of the (u, v) plane than the more conventional linear scanning. We use a genetic algorithm to optimize two-dimensional arrays for maximum uniform (u, v) coverage after a rotational mechanical scan and demonstrates improvements in the array point spread function. Imaging performance is assessed with simulated millimeter-wave scenes. Results show an increased image quality is achieved with the optimized array compared with a conventional power law Y-shaped array. Finally we discuss the increased demands on system stability and calibration that the increased acquisition time of the proposed technique places.Citation: Lucotte, B. M., B. Grafulla-González, and A. R. Harvey (2009), Array rotation aperture synthesis for short-range imaging at millimeter wavelengths, Radio Sci., 44, RS1006,

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Section: System Designmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Array rotation aperture synthesis for short‐range imaging at millimeter wavelengths

2009

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“…As the need for conformal antennas is consistently increased recently, various techniques including local optimization algorithm and global optimization algorithm on the pattern synthesis of conformal array antennas have been extensively studied . In particular, the evolutionary algorithms derived from biologic behavior have attracted more attention because of their simple structure, efficiency, and suitability for solving multiparameter, multigoal problems .…”

Section: Introductionmentioning

confidence: 99%

Study on pattern synthesis of conformal array using enhanced adaptive genetic algorithm

Seong

Park

2015

Micro & Optical Tech Letters

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Investigations on an enhanced adaptive genetic algorithm (EAGA) for pattern synthesis of a conformal array are presented. The proposed algorithm uses the advantages of the adaptive genetic algorithm (AGA) and the invasive weed optimization so that it improves the searching ability and the convergence speed. Convergence characteristics of the EAGA are compared with those of the AGA. Also, the pattern synthesis performance of the EAGA is compared with that of the AGA. A 4 × 16 conformal array operating as a 1 × 16 array in the azimuth direction is fabricated and measured to demonstrate the proposed algorithm. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1173–1176, 2015

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“…Intelligent optimization algorithms show good performance in solving such kind of problems. Thereby, algorithms such as genetic algorithm (GA) and particle swarm optimization (PSO) algorithm , are applied in solving such problems and achieved considerable solutions.…”

Section: Introductionmentioning

confidence: 99%

A novel hybrid invasive weed optimization algorithm for pattern synthesis of array antennas

Liu

Jiao

Zhang

2014

Int J RF and Microwave Comp Aid Eng

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By introducing novel strategies in Invasive Weed Optimization (IWO), a hybrid algorithm called IWO‐simplified quadratic approximation (SQA) is proposed, in which an adaptive standard deviation is designed to improve the convergence performances of the original IWO, and SQA is embedded into IWO as a local search operator to enhance the overall search capability of the algorithm. Simulated results for six benchmark functions show that the proposed algorithm performs better than the original IWO algorithm. In addition, the proposed algorithm is used to the pattern synthesis of array antennas. Compared to the genetic algorithm (GA) and particle swarm optimization (PSO), the advantages of IWO‐SQA algorithm are shown. As another application, the phase‐only pattern reconfigurable arrays are synthesized by IWO‐SQA algorithm, and the numerical results show that IWO‐SQA algorithm is superior to GA. All the testing results show that it is an effective improvement to embed SQA into IWO algorithm. © 2014 Wiley Periodicals, Inc. Int J RF and Microwave CAE 25:154–163, 2015.

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Synthesis of antenna arrays using genetic algorithms

Cited by 18 publications

References 9 publications

Array rotation aperture synthesis for short‐range imaging at millimeter wavelengths

Array rotation aperture synthesis for short‐range imaging at millimeter wavelengths

Study on pattern synthesis of conformal array using enhanced adaptive genetic algorithm

A novel hybrid invasive weed optimization algorithm for pattern synthesis of array antennas

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