Record link: 
http://hdl.handle.net/20.500.12708/193283
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Title: 
Comparison of Methods for Computing Spherical Wave Coefficients from Truncated Measurements
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Citation: 
Soklič, J., & Arthaber, H. (2023). Comparison of Methods for Computing Spherical Wave Coefficients from Truncated Measurements. In 2023 IEEE Conference on Antenna Measurements and Applications (CAMA) (pp. 790–794). IEEE. https://doi.org/10.1109/CAMA57522.2023.10352741
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Publisher DOI: 
10.1109/CAMA57522.2023.10352741
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Publication Type: 
Inproceedings - Full-Paper Contribution
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Language: 
English
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Authors: 
Soklič, Jure 
Arthaber, Holger 
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Organisational Unit: 
E354-01 - Forschungsbereich Microwave and THz Electronics 
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Published in: 
2023 IEEE Conference on Antenna Measurements and Applications (CAMA) 
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ISBN: 
979-8-3503-2304-7
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Date (published): 
19-Dec-2023
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Event name: 
2023 IEEE Conference on Antenna Measurements and Applications (CAMA) 
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Event date: 
15-Nov-2023 - 17-Nov-2023
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Event place: 
Genova, Italy
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Number of Pages: 
5
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Publisher: 
IEEE
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Peer reviewed: 
Yes
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Keywords: 
Antenna measurements; Memory management; Robustness; Loss measurement; Noise measurement; Iterative methods; Sensitivity; near-field radiation pattern; iterative algorithms; Fourier transforms; least squares approximations
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Abstract: 
Different approaches capable of mitigating errors caused by using truncated near-field patterns exist. In this work, the iterative approach, the direct least squares matrix inversion method, and the mixed FFT/Matrix inversion technique are compared in terms of their computation time and resulting truncation errors. The methods are also tested for robustness against noise in the measurement data. Singular value truncation is identified as a possible solution to high noise sensitivity of matrix methods and a tolerance factor expression for this truncation, based on the signal-to-noise ratio of used test data, is proposed.
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Research Areas: 
Telecommunication: 100%
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Science Branch: 
2020 - Elektrotechnik, Elektronik, Informationstechnik: 100%
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Appears in Collections:
Conference Paper

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