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10th International Conference on Communications, Signal Processing, and Systems

作者： Hu, Hongming Zhao, Lulu Gao, Peng Liang, Guang Li, Huawang Innovat Acad Microsatellites CAS Shanghai 201203 Peoples R China Shanghai Engn Ctr Microsatellites Shanghai 201203 Peoples R China Univ Chinese Acad Sci Beijing 100049 Peoples R China

ISBN: (纸本)9789811903908;9789811903892

This paper introduces a hybrid optimization method, which combines particle swarm optimization and genetic algorithm for antenna array pattern synthesis. The algorithm first removes a quarter of the individuals with a lower fitness value, and copies the remaining individuals with a middle third of the fitness values to form a new population. Then particle swarm optimization and genetic algorithm are carried out, and particle swarm thinking is introduced into mutation operator. This algorithm can better solve the optimization problems of multidimensional and nonlinear problems. The excitation amplitude and phase of the array elements are optimized to achieve the desired low sidelobe level and deep zeros. Our empirical results show that, the proposed method outperforms existing methods according to convergency, efficiency and optimization.

关键词： antenna array pattern synthesis Genetic algorithm Particle swarm optimization

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antenna array pattern synthesis for Space Communication Applications

Antenna Array Pattern Synthesis for Space Communication Appl...

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2010 IEEE International Symposium antennas and Propagation/CNC-USNC/URSI Radio Science Meeting

作者： Ares-Pena, F. Rodriguez-Gonzalez, J. A. Univ Santiago de Compostela Dept Appl Phys Santiago De Compostela 15782 Spain

ISBN: (纸本)9781424449682

The proposed method allows very rapid synthesis of large antenna arrays, affording footprint patterns of satisfactory quality. It is possible to reduce the number of array elements by reducing the number of filled nulls of the modified Elliott-Stern pattern that is sampled at the expense of reducing of the average slope of the pattern (dropoff rate) and a small reduction in the pattern directivity. Furthermore, by combination of the Elliott-Stern method and a 3D version of Woodward-Lawson method it is possible to perform rapid synthesis of irregular footprints generated by conformal arrays that are too large to allow direct optimization of array excitations by numerical methods.

关键词： Woodward-Lawson method antenna array pattern synthesis antenna arrays antenna radiation patterns array elements array excitations conformal antennas conformal arrays footprint patterns modified Elliott-Stern pattern numerical analysis numerical methods pattern directivity space communication applications space communication links

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Arbitrary antenna array pattern synthesis using minimax algorithm

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ELECTRONICS LETTERS 2001年第4期37卷 206-208页

作者： Dotlic, ID Zejak, AJ IMTEL YU-11070 Belgrade Yugoslavia

A novel approach to arbitrary array pattern synthesis is proposed. It is based on the minimax algorithm originally developed for mismatched filter design for radars with pulse compression. The proposed approach allows... 详细信息

关键词： minimax techniques antenna theory Optimisation techniques antenna array pattern synthesis antenna radiation patterns antenna arrays minimax algorithm antenna arrays

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A versatile pattern synthesis algorithm for circular antenna array

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INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING 2018年第5期28卷

作者： Wu, Shin-Ru Huang, Chien-Chang Mar, Jeich Chou, Jui-Hung Yuan Ze Univ Dept Commun Engn Taoyuan Taiwan Natl Chung Shan Inst Sci & Technol Elect Syst Res Div Taoyuan Taiwan

This article presents a versatile pattern synthesis algorithm for controlling the sidelobe level and nulling region for circular antenna arrays. Nonuniform fast Fourier transform using the min-max interpolation method is utilized to overcome the nonlinear feature of circular arrays. The major advantage of the proposed algorithm is low complexity, which is key for hardware implementation. Moreover, the proposed algorithm functions well in amplitude-only pattern synthesis, which may be required for low-cost array systems using attenuators instead of complete amplitude and phase adjustment modules. Additionally, element failure of antenna arrays can be minimized in practical operations by resynthesizing the pattern by using the remaining antennas to achieve satisfactory performance. Simulation results indicate the lower complexity and higher versatility of the proposed algorithm compared with the conventional methods.

关键词： antenna array pattern synthesis array element failure correction circular antenna array nonuniform fast Fourier transform (NUFFT)

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pattern synthesis of array antennas with arbitrary elements by simulated annealing and adaptive array theory

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MICROWAVE AND OPTICAL TECHNOLOGY LETTERS 1999年第1期20卷 48-50页

作者： Rodríguez, JA Landesa, L Rodríguez, JL Obelleiro, F Ares, F García-Pino, A Univ Santiago de Compostela Dept Fis Aplicada Grp Sistemas Radiantes Fac Fis Santiago De Compostela 15706 Spain Univ Vigo Dept Tecnol Comunicac ETSE Telecomunicac Vigo 36200 Spain

A method to carry oat the pattern synthesis of arbitrary array antennas is presented This method uses the simulated annealing technique to calculate the power interferences described in the Olen-Compton method Its application to a linens array of 16 unequally spaced nonidentical elements and to a circular are array of 25 axial dipoles is shown in order to illustrate its efficiency and accuracy. (C) 1999 John Wiley & Sons, Inc.

关键词： adaptive theory antenna array pattern synthesis

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Eigenvector method for array pattern synthesis

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MICROWAVE AND OPTICAL TECHNOLOGY LETTERS 2024年第8期66卷

作者： Chen, Jie Yin, Yingzeng Xian Aeronaut Univ Sch Elect Engn 259 Xian West Second Ring Rd Xian 710077 Peoples R China Xidian Univ Sch Elect Engn Natl Key Lab Antenna & Microwave Technol Xian Peoples R China

A novel equation for array beam pattern synthesis is presented. The expected pattern total power is set to a fixed value, under this constraint, the difference between the main beam total power and the other part total power is maximized to achieve the array pattern synthesis. To solve the proposed pattern synthesis equation, which cannot be solved by any published traditional method, based on the Lagrange multiplier method, it is transformed into a new equation in which the array element excitation vector is the eigenvector of a matrix. Thus, the array element excitation vector can be obtained by matrix eigenvalue decomposition. Three array architectures using the method are taken as examples to show its advantages. Simulation results of the examples show that the method has better performance than other methods. The method is a noniterative approach, so it requires less computational volume to complete the pattern synthesis process. In addition, through eigenvalue decomposition, multiple eigenvectors can provide other different solutions of array elements current excitations, which can be applied in different areas.

关键词： antenna array pattern synthesis eigenvalue decomposition eigenvector Lagrange multiplier method steering matrix

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A hybrid approach for the optimal synthesis of pencil beams through array antennas

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IEEE TRANSACTIONS ON antennaS AND PROPAGATION 2004年第11期52卷 2912-2918页

作者： Isernia, T Pena, FJA Bucci, OM D'Urso, M Gómez, JF Rodríguez, JA Univ Mediterranea Reggio Calabria DIMET I-89100 Reggio Di Calabria Italy Univ Santiago Dept Fis Aplicada Santiago De Compostela 15782 Spain Univ Naples Federico II DIET I-80125 Naples Italy

A hybrid approach to the synthesis of excitations and locations of nonuniformly spaced arrays in order to achieve optimal focusing in any given direction is proposed and discussed. The approach takes definite advantage from the convexity of the problem with respect to excitation variables, and exploits a Simulated Annealing procedure as far as location variables are concerned. The corresponding synthesized patterns outperform previously known results in standard benchmark problems.

关键词： antenna array pattern synthesis convex programming nonuniformly spaced arrays simulated annealing

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synthesis of very large planar arrays for prescribed footprint illumination

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IEEE TRANSACTIONS ON antennaS AND PROPAGATION 2008年第2期56卷 584-589页

作者： Ares, F. Fondevila-Gomez, J. Franceschetti, G. Moreno-Piquero, E. Rodriguez-Gonzalez, J. A. Univ Santiago Fac Phys Dept Appl Phys Radiating Syst Grp Santiago De Compostela 15782 Spain Univ Calif Los Angeles Los Angeles CA 90095 USA Univ Naples Federico II Dept Elect Engn I-80125 Naples Italy

Footprint patterns can be efficiently synthesized by means of planar arrays with hundreds or thousands of elements: an efficient combination of Woodward-Lawson and Orchard-Elliott-Stern roots optimization procedure is suggested. This hybrid technique is applied to a footprint covering Europe by using planar arrays with isotropic elements and linearly polarized circular patches. The proposed method keeps under control both the side lobe and ripple level of the synthesized pattern.

关键词： antenna array pattern synthesis footprint patterns Orchard-Elliott-Stern (OES) method planar arrays Woodward-Lawson (WL) method

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General design method for diversity antenna arrays

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MICROWAVE AND OPTICAL TECHNOLOGY LETTERS 2000年第5期26卷 341-348页

作者： Juntunen, J Nikoskinen, K Helsinki Univ Technol Electromagnet Lab FIN-02015 HUT Finland

A conventional antenna array pattern design is based on the amplitude of the radiation pattern, as the angular phase properties of the radiation pattern are generally not considered interesting. This paper discusses a different kind of a design method, where the phase pattern has its significance ns a factor behind the multiplicity of the amplitude pattern. The design method can be used in the planning process of base-station antenna arrays for mobile communications. (C) 2000 John Wiley & Sons, Inc.

关键词： antenna array pattern synthesis antenna diversity reception mobile communications

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Ecosystem particle swarm optimization

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SOFT COMPUTING 2017年第7期21卷 1667-1691页

作者： Liu, Jiao Ma, Di Ma, Teng-bo Zhang, Wei Taiyuan Univ Technol Coll Chem & Chem Engn Taiyuan 030024 Peoples R China

Particle swarm optimization (PSO) is a well-known swarm intelligence algorithm inspired by the foraging behavior of bird flocking. PSO has been widely used in many optimization and engineering problems due to its simplicity and efficiency, even though there still exist some disadvantages. The standard PSO often suffers with premature convergence or slow convergence when the optimization problem is multimodal or high-dimensional. To overcome these drawbacks, an ecosystem PSO (ESPSO) inspired by the characteristic that a natural ecosystem can excellently keep the biological diversity and make the whole ecosystem be in a dynamic balance is presented in this paper. ESPSO not only prevents the algorithm trapping into local optima but also balances the exploration and exploitation in both unimodal and multimodal problems as compared to other PSO variants. Twenty benchmark functions including unimodal functions and multimodal nonlinear functions are used to test the searching ability of ESPSO. Experimental results show that ESPSO considerably improves the searching accuracy, the algorithm reliability and the searching efficiency in comparison with other six well-known PSO variants and four evolutionary algorithms. Moreover, ESPSO was successfully applied to the antenna array pattern synthesis design and gained satisfactory results.

关键词： Particle swarm optimization Ecosystem mechanism antenna array pattern synthesis

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