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| Analysis of Excitation Optimization of Short Wave Phased Array Based on Quantum-behaved Particle Swarm Optimization |
| FAN Qimeng① YIN Chengyou① LIAO Feilong② |
①(Electronic Engineering Institute of PLA, Hefei 230037, China)
②(Army Officer Academy of PLA, Hefei 230037, China) |
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Abstract In order to enhance long-distance communication performance and jamming ability in electronic warfare for shortwave equipment, performance improvement of near-ground wideband short wave phased array is required. Firstly, method of moments is adopted to construct the analysis framework, then the radiation field of antenna elements is decomposed into free-space part and Sommerfeld-integral part with the help of formulation of spatial Green,s function, the former part can be expressed in closed form and the latter part can be approximated by two-level DCIM. After that, the efficiency of filling impedance matrix is enormously increased. Finally, based on the impedance matrix, combining with network theory, Quantum-behaved Particle Swarm Optimization (QPSO) is employed to search for optimal excitation phases, through which high gain and beam scanning are realized. Furthermore, point-point sky wave propagation is implemented neatly in the condition of temporal and spatial variation of ionosphere parameters, thus the array is of great value in practical applications.
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Received: 03 August 2016
Published: 20 March 2017
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| Fund: The Natural Science Foundation of Anhui Province (1408085QF121) |
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Corresponding Authors:
YIN Chengyou
E-mail: cyouyin@sina.com
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