Genetic algorithm applied to determine the spherical wave expansion from amplitude-only far-field data

Päivi Koivisto; Johan Stén

doi:10.1002/mop.21000

Genetic algorithm applied to determine the spherical wave expansion from amplitude-only far-field data

Päivi Koivisto, Johan Stén

VTT Technical Research Centre of Finland

Research output: Contribution to journal › Article › Scientific › peer-review

1 Citation (Scopus)

Abstract

A method is presented for solving the spherical wave expansion (SWE) from far‐field amplitude‐only data. The idea is to minimize the least‐squares difference between the amplitude of the measured field and that of a calculated SWE using a combination of a genetic algorithm (GA) and Newton's method. The uniqueness aspects of the problem are addressed. A measured antenna radiation pattern is analyzed with and without phase data and the results are compared.

Original language	English
Pages (from-to)	402-406
Journal	Microwave and Optical Technology Letters
Volume	46
Issue number	4
DOIs	https://doi.org/10.1002/mop.21000
Publication status	Published - 2005
MoE publication type	A1 Journal article-refereed

Keywords

spherical wave expansion
SWE
amplitude-only measurement
genetic algorithm

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10.1002/mop.21000

Cite this

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title = "Genetic algorithm applied to determine the spherical wave expansion from amplitude-only far-field data",

abstract = "A method is presented for solving the spherical wave expansion (SWE) from far‐field amplitude‐only data. The idea is to minimize the least‐squares difference between the amplitude of the measured field and that of a calculated SWE using a combination of a genetic algorithm (GA) and Newton's method. The uniqueness aspects of the problem are addressed. A measured antenna radiation pattern is analyzed with and without phase data and the results are compared.",

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AU - Koivisto, Päivi

AU - Stén, Johan

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AB - A method is presented for solving the spherical wave expansion (SWE) from far‐field amplitude‐only data. The idea is to minimize the least‐squares difference between the amplitude of the measured field and that of a calculated SWE using a combination of a genetic algorithm (GA) and Newton's method. The uniqueness aspects of the problem are addressed. A measured antenna radiation pattern is analyzed with and without phase data and the results are compared.

KW - spherical wave expansion

KW - SWE

KW - amplitude-only measurement

KW - genetic algorithm

U2 - 10.1002/mop.21000

DO - 10.1002/mop.21000

M3 - Article

SN - 1098-2760

VL - 46

SP - 402

EP - 406

JO - Microwave and Optical Technology Letters

JF - Microwave and Optical Technology Letters

IS - 4

ER -

Genetic algorithm applied to determine the spherical wave expansion from amplitude-only far-field data

Abstract

Keywords

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