{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,12]],"date-time":"2026-02-12T14:26:27Z","timestamp":1770906387246,"version":"3.50.1"},"reference-count":35,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2024,3,22]],"date-time":"2024-03-22T00:00:00Z","timestamp":1711065600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001807","name":"Fapesp","doi-asserted-by":"publisher","award":["2014\/50851-0"],"award-info":[{"award-number":["2014\/50851-0"]}],"id":[{"id":"10.13039\/501100001807","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001807","name":"Fapesp","doi-asserted-by":"publisher","award":["465755\/2014-3"],"award-info":[{"award-number":["465755\/2014-3"]}],"id":[{"id":"10.13039\/501100001807","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003593","name":"CNPq","doi-asserted-by":"publisher","award":["2014\/50851-0"],"award-info":[{"award-number":["2014\/50851-0"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003593","name":"CNPq","doi-asserted-by":"publisher","award":["465755\/2014-3"],"award-info":[{"award-number":["465755\/2014-3"]}],"id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Aerospace"],"abstract":"<jats:p>This paper proposes a new kind of airship actuator configuration for surveillance and environmental monitoring missions. We present the design and application of a six-propeller electrical airship (Noamini) with independent tilting propellers, allowing improved and flexible maneuverability. The vehicle has different combinations of differential propulsion and can be used in a two-, four- or six-motor configuration. We developed a high-fidelity airship simulator for the Noamini airship, which was used to test and validate a control\/guidance approach. Incremental Nonlinear Dynamic Inversion (INDI) is used for the velocity\/attitude control to follow a high-level L1 guidance reference in a simulated waypoint-tracking mission with wind and turbulence. The proposed framework will be soon implemented in the onboard control system of the Noamini, an autonomous airship for environmental monitoring and surveillance applications.<\/jats:p>","DOI":"10.3390\/aerospace11040249","type":"journal-article","created":{"date-parts":[[2024,3,22]],"date-time":"2024-03-22T10:03:59Z","timestamp":1711101839000},"page":"249","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Hexa-Propeller Airship for Environmental Surveillance and Monitoring in Amazon Rainforest"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0759-3211","authenticated-orcid":false,"given":"Jos\u00e9","family":"Azinheira","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering, Instituto Superior T\u00e9cnico (IST), Av. Rovisco Pais 1, 1049-001 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3828-7233","authenticated-orcid":false,"given":"Reginaldo","family":"Carvalho","sequence":"additional","affiliation":[{"name":"Institute of Computing, Federal University of Amazonas (UFAM), Av. General Rodrigo Octavio Jord\u00e3o Ramos, 1200-Coroado I, Manaus 69067-005, AM, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9205-9688","authenticated-orcid":false,"given":"Ely","family":"Paiva","sequence":"additional","affiliation":[{"name":"School of Mechanical Engineering, University of Campinas (Unicamp), R. Mendeleyev, 200, Campinas 13083-860, SP, Brazil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9094-3365","authenticated-orcid":false,"given":"Rafael","family":"Cordeiro","sequence":"additional","affiliation":[{"name":"Electrical Engineering Department, Federal University of Espirito Santo (UFES), Av. Fernando Ferrari, 514-Goiabeiras, Vit\u00f3ria 29075-910, ES, Brazil"}]}],"member":"1968","published-online":{"date-parts":[[2024,3,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Carvalho, J., Rueda, M., Azinheira, J., Moutinho, A., Bizarro Mirisola, L.G., Paiva, E., Nogueira, L., Fonseca, G., Ramos, J., and Koyama, M. (2021). System Architecture of a Robotics Airship, Springer.","DOI":"10.1007\/978-3-030-55374-6_2"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"100741","DOI":"10.1016\/j.paerosci.2021.100741","article-title":"Research and advancements in hybrid airships\u2014A review","volume":"127","author":"Murugaiah","year":"2021","journal-title":"Prog. Aerosp. 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