An SVD Approach for Estimating the Dimension of Phaseless Data on Multiple Arcs in Fresnel Zone
In this article, we tackle the question of evaluating the dimension of the data space in the phase retrieval problem. With the aim to achieve this task, we first exploit the lifting technique to recast the quadratic model as a linear one. After that, we evaluate analytically the singular values of t...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/10/5/606 |
| _version_ | 1797413659128889344 |
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| author | Rocco Pierri Raffaele Moretta |
| author_facet | Rocco Pierri Raffaele Moretta |
| author_sort | Rocco Pierri |
| collection | DOAJ |
| description | In this article, we tackle the question of evaluating the dimension of the data space in the phase retrieval problem. With the aim to achieve this task, we first exploit the lifting technique to recast the quadratic model as a linear one. After that, we evaluate analytically the singular values of the lifting operator, and we quantify the dimension of the data space by counting the number of “significant” singular values. In the last part of the article, we show some numerical results in order to corroborate our analytical prediction on the singular values’ behavior of the lifting operator and on the dimension of the data space. The analysis is performed for a 2D scalar geometry consisting of an electric current strip whose square magnitude of the radiated field is observed on multiple arcs of circumference in Fresnel zone. |
| first_indexed | 2024-03-09T05:22:06Z |
| format | Article |
| id | doaj.art-5765bf7504004634a10963e65d2d6b8b |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-09T05:22:06Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-5765bf7504004634a10963e65d2d6b8b2023-12-03T12:39:53ZengMDPI AGElectronics2079-92922021-03-0110560610.3390/electronics10050606An SVD Approach for Estimating the Dimension of Phaseless Data on Multiple Arcs in Fresnel ZoneRocco Pierri0Raffaele Moretta1Dipartimento di Ingegneria, Università della Campania “Luigi Vanvitelli”, Via Roma 29, 81031 Aversa, ItalyDipartimento di Ingegneria, Università della Campania “Luigi Vanvitelli”, Via Roma 29, 81031 Aversa, ItalyIn this article, we tackle the question of evaluating the dimension of the data space in the phase retrieval problem. With the aim to achieve this task, we first exploit the lifting technique to recast the quadratic model as a linear one. After that, we evaluate analytically the singular values of the lifting operator, and we quantify the dimension of the data space by counting the number of “significant” singular values. In the last part of the article, we show some numerical results in order to corroborate our analytical prediction on the singular values’ behavior of the lifting operator and on the dimension of the data space. The analysis is performed for a 2D scalar geometry consisting of an electric current strip whose square magnitude of the radiated field is observed on multiple arcs of circumference in Fresnel zone.https://www.mdpi.com/2079-9292/10/5/606phase retrievalnonlinear inversiondata space dimensionindependent data |
| spellingShingle | Rocco Pierri Raffaele Moretta An SVD Approach for Estimating the Dimension of Phaseless Data on Multiple Arcs in Fresnel Zone Electronics phase retrieval nonlinear inversion data space dimension independent data |
| title | An SVD Approach for Estimating the Dimension of Phaseless Data on Multiple Arcs in Fresnel Zone |
| title_full | An SVD Approach for Estimating the Dimension of Phaseless Data on Multiple Arcs in Fresnel Zone |
| title_fullStr | An SVD Approach for Estimating the Dimension of Phaseless Data on Multiple Arcs in Fresnel Zone |
| title_full_unstemmed | An SVD Approach for Estimating the Dimension of Phaseless Data on Multiple Arcs in Fresnel Zone |
| title_short | An SVD Approach for Estimating the Dimension of Phaseless Data on Multiple Arcs in Fresnel Zone |
| title_sort | svd approach for estimating the dimension of phaseless data on multiple arcs in fresnel zone |
| topic | phase retrieval nonlinear inversion data space dimension independent data |
| url | https://www.mdpi.com/2079-9292/10/5/606 |
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