{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T14:50:55Z","timestamp":1773327055529,"version":"3.50.1"},"reference-count":40,"publisher":"American Institute of Aeronautics and Astronautics (AIAA)","issue":"2","content-domain":{"domain":["arc.aiaa.org"],"crossmark-restriction":true},"short-container-title":["Journal of Aerospace Information Systems"],"published-print":{"date-parts":[[2023,2]]},"abstract":"<jats:p> This paper presents autonomous guidance strategies for both solo and group of unmanned aerial vehicles (UAVs), to be used when emergency conditions are encountered during mission. Fixed-wing UAVs equipped with batteries that serve as on-board power source are considered. They are also equipped with inertial and supervisory satellite-based navigation system. An emergency condition where limited available on-board power along with nonavailability of both ground command link and satellite-based navigation information is considered. We proposed two guidance strategies, look-lock-land and inject-contribute-exit for single- and multiple-UAV missions. An optimization model is developed to arrive at the maximum area that can be covered by spiral trajectory without violating on-board power constraints. In addition, we also proved that spiral trajectory acts like a circular highway for multiple-UAV missions. Algorithms to achieve look-lock-land, inject-contribute-exit and to compute Inertial Navigation Systems (INS) error correction factor are discussed. The performance of the proposed autonomous emergency guidance strategies is demonstrated on a sea-based oil-well-monitoring mission. <\/jats:p>","DOI":"10.2514\/1.i011095","type":"journal-article","created":{"date-parts":[[2022,10,31]],"date-time":"2022-10-31T11:59:10Z","timestamp":1667217550000},"page":"102-113","update-policy":"https:\/\/doi.org\/10.2514\/aiaa_crossmarkpolicy","source":"Crossref","is-referenced-by-count":2,"title":["Autonomous Cooperative Guidance Strategies for Unmanned Aerial Vehicles During On-Board Emergency"],"prefix":"10.2514","volume":"20","author":[{"given":"Manickam","family":"Suresh","sequence":"first","affiliation":[{"name":"Defence Research and Development Organisation, Bangalore 560 075, Karnataka, India"}]},{"given":"Sufal","family":"Chandra Swar","sequence":"additional","affiliation":[{"name":"Defence Research and Development Organisation, Bangalore 560 075, Karnataka, 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