{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:05:14Z","timestamp":1760241914184,"version":"build-2065373602"},"reference-count":24,"publisher":"MDPI AG","issue":"10","license":[{"start":{"date-parts":[[2018,10,20]],"date-time":"2018-10-20T00:00:00Z","timestamp":1539993600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002641","name":"Konkuk University","doi-asserted-by":"publisher","award":["Faculty Fund 2016"],"award-info":[{"award-number":["Faculty Fund 2016"]}],"id":[{"id":"10.13039\/501100002641","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>This paper proposes a novel and accurate method for estimating the flight coefficient of a flying disc typically operating at a high rotation rate. In particular, the proposed method introduces a new algorithm that takes advantage of magnetic data measured by a miniaturized sensor module onboard a conventional disc. Since the geomagnetic field measured by the magnetic sensor mounted on the rotating body yields a general sinusoidal waveform, a frequency domain analysis is employed in computing the rotational rate. Furthermore, on the basis of the estimated rate during a whole flight period, a yaw damping derivative coefficient is derived, which enables an accurate prediction of the disc\u2019s flight trajectory. For performance verification, both a reference rotation table test and a real flight test are performed, for which a miniaturized embedded sensor module is designed and manufactured for an onboard flight test. A reference rotation test validates the performance of the proposed method. Subsequently, a flight test, in which a simulator-based trajectory is compared with the true reference trajectory, verifies that the proposed method better predicts the flight trajectory by incorporating the estimated coefficient.<\/jats:p>","DOI":"10.3390\/s18103564","type":"journal-article","created":{"date-parts":[[2018,10,23]],"date-time":"2018-10-23T08:43:36Z","timestamp":1540284216000},"page":"3564","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Study on Improved Flight Coefficient Estimation and Trajectory Analysis of a Flying Disc through Onboard Magnetometer Measurements"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6323-8513","authenticated-orcid":false,"given":"Juhwan","family":"Lee","sequence":"first","affiliation":[{"name":"Department of Aerospace Information Engineering, Konkuk University, Seoul 05029, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Byungjin","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Aerospace Information Engineering, Konkuk University, Seoul 05029, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jin Woo","family":"Song","sequence":"additional","affiliation":[{"name":"School of Intelligent Mechatronic Engineering, Sejong University, Seoul 05006, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Young Jae","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Aerospace Information Engineering, Konkuk University, Seoul 05029, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sangkyung","family":"Sung","sequence":"additional","affiliation":[{"name":"Department of Aerospace Information Engineering, Konkuk University, Seoul 05029, Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,10,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"400","DOI":"10.1016\/j.proeng.2015.07.215","article-title":"Validation of the Aerodynamic Loading on Basic Flying Disc Geometries derived from CFD Simulations","volume":"112","author":"Potts","year":"2015","journal-title":"Procedia Eng."},{"key":"ref_2","unstructured":"Park, D., Kim, T.U., Park, S.H., and Sung, S. 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