{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,11,18]],"date-time":"2023-11-18T00:39:02Z","timestamp":1700267942924},"reference-count":34,"publisher":"MDPI AG","issue":"22","license":[{"start":{"date-parts":[[2023,11,17]],"date-time":"2023-11-17T00:00:00Z","timestamp":1700179200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"Fourier-based imaging has been widely adopted for microwave imaging thanks to its efficiency in terms of computational complexity without compromising image resolution. Together with other backpropagation imaging algorithms like delay-and-sum (DAS), they are based on a far-field approach to the electromagnetic expression relating to fields and sources. To improve the accuracy of these techniques, this contribution presents a modified version of the well-known Fourier-based algorithm by taking into account the field radiated by the Tx\/Rx antennas of the microwave imaging system. The impact on the imaged targets is discussed, providing a quantitative and qualitative analysis. The performance of the proposed method for subsampled microwave imaging scenarios is compared against other well-known aliasing mitigation methods.<\/jats:p>","DOI":"10.3390\/s23229250","type":"journal-article","created":{"date-parts":[[2023,11,17]],"date-time":"2023-11-17T14:23:43Z","timestamp":1700231023000},"page":"9250","source":"Crossref","is-referenced-by-count":0,"title":["Improved Methods for Fourier-Based Microwave Imaging"],"prefix":"10.3390","volume":"23","author":[{"ORCID":"http:\/\/orcid.org\/0000-0003-3625-4515","authenticated-orcid":false,"given":"Yuri","family":"Alvarez L\u00f3pez","sequence":"first","affiliation":[{"name":"Area of Signal Theory and Communications, Department of Electrical Engineering, Universidad de Oviedo, Edificio Polivalente, Mod. 8, Campus Universitario de Gij\u00f3n, 33203 Gij\u00f3n, Spain"}]},{"ORCID":"http:\/\/orcid.org\/0000-0001-7959-2114","authenticated-orcid":false,"given":"Fernando","family":"Las-Heras Andr\u00e9s","sequence":"additional","affiliation":[{"name":"Area of Signal Theory and Communications, Department of Electrical Engineering, Universidad de Oviedo, Edificio Polivalente, Mod. 8, Campus Universitario de Gij\u00f3n, 33203 Gij\u00f3n, Spain"}]}],"member":"1968","published-online":{"date-parts":[[2023,11,17]]},"reference":[{"key":"ref_1","first-page":"8000911","article-title":"Influence of Antenna Pattern on Synthetic Aperture Radar Resolution for NDE Applications","volume":"70","author":"Liu","year":"2021","journal-title":"IEEE Tran. 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