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http://hdl.handle.net/20.500.12386/25968
Title: | Singular values behaviour optimization in the diagnosis of feed misalignments in radioastronomical reflectors | Authors: | Capozzoli, Amedeo Curcio, Claudio Liseno, Angelo SAVARESE, Salvatore SCHIPANI, Pietro |
Issue Date: | 2016 | Volume: | Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II | Editors: | Navarro, Ramón; Burge, James H. | Series: | PROCEEDINGS OF SPIE | Number: | 9912 | First Page: | 99124P | Abstract: | The communication presents an innovative method for the diagnosis of reflector antennas in radio astronomical applications. The approach is based on the optimization of the number and the distribution of the far field sampling points exploited to retrieve the antenna status in terms of feed misalignments, this to drastically reduce the time length of the measurement process and minimize the effects of variable environmental conditions and simplifying the tracking process of the source. The feed misplacement is modeled in terms of an aberration function of the aperture field. The relationship between the unknowns and the far field pattern samples is linearized thanks to a Principal Component Analysis. The number and the position of the field samples are then determined by optimizing the Singular Values behaviour of the relevant operator. | Conference Name: | Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II | Conference Place: | Edinburgh, United Kingdom | Conference Date: | 26 June - 1 July 2016 | URI: | http://hdl.handle.net/20.500.12386/25968 | URL: | https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9912/99124P/Singular-values-behaviour-optimization-in-the-diagnosis-of-feed-misalignments/10.1117/12.2233403.full | ISSN: | 0277-786X | ISBN: | 9781510602038 9781510602045 |
DOI: | 10.1117/12.2233403 | Bibcode ADS: | 2016SPIE.9912E..4PC | Fulltext: | open |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
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File | Description | Size | Format | |
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99124P.pdf | Pdf editoriale | 2.12 MB | Adobe PDF | View/Open |
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