{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T00:20:57Z","timestamp":1775607657971,"version":"3.50.1"},"reference-count":34,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2022,5,20]],"date-time":"2022-05-20T00:00:00Z","timestamp":1653004800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>PALSAR2 polarimetric distortion matrix is measured using corner reflectors deployed in the Amazonian forest. The Amazonian forest near the geomagnetic equator provides ideal sites for the assessment of L-band PALSAR2 antenna parameters, at free Faraday rotation. Corner reflectors (CRs) deployed at free Faraday rotation provide accurate estimation of antenna cross-talks in contrast to the biased measurements obtained with CRs deployed at significant Faraday rotation. The extended Freeman\u2013Van Zyl calibration method introduced and validated for ALOS-PALSAR calibration is used for the assessment of PALSAR-2 calibration parameters. Six datasets collected over the Amazonian rainforests (with CRs) are used to assess PALSAR-2 distortion matrix for five beams (FP6-3 to FP6-7) with incidence angle varying from 25\u00b0 to 40\u00b0. It is shown that the PALSAR2 antenna is highly isolated with very low cross-talks (lower than \u221240 dB). Finally, the impact of a significant Faraday rotation on antenna cross-talk measurements using CR is discussed.<\/jats:p>","DOI":"10.3390\/rs14102452","type":"journal-article","created":{"date-parts":[[2022,5,21]],"date-time":"2022-05-21T09:18:08Z","timestamp":1653124688000},"page":"2452","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Calibration and Validation of Polarimetric ALOS2-PALSAR2"],"prefix":"10.3390","volume":"14","author":[{"given":"Ridha","family":"Touzi","sequence":"first","affiliation":[{"name":"Canada Center for Remote Sensing, 560 Rochester Street, Ottawa, ON K1A 0E4, Canada"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8981-6679","authenticated-orcid":false,"given":"Masanobu","family":"Shimada","sequence":"additional","affiliation":[{"name":"School and Science Engineering, Tokyo Denki University, Saitama 350-0394, Japan"},{"name":"Japan Aerospace Exploration Agency (JAXA), Tsukuba 305-8505, Japan"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7977-732X","authenticated-orcid":false,"given":"Takeshi","family":"Motohka","sequence":"additional","affiliation":[{"name":"Japan Aerospace Exploration Agency (JAXA), Tsukuba 305-8505, Japan"}]}],"member":"1968","published-online":{"date-parts":[[2022,5,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Okada, Y., Hamasaki, T., Tsuji, M., Iwamoto, M., Hariu, K., Kankaku, Y., Suzuki, S., and Osawa, Y. 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