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Definition
capability to see, sense or detect conflicting traffic or other hazards and take the appropriate action
NOTE 1 UK CAA, CAP 722, Unmanned aircraft system operations in UK airspace – Policy and guidance [13] describes the following as necessary DAA functions:
- detect and avoid traffic (aircraft in the air and on the ground) in accordance with the Rules of the Air;
- detect and avoid all airborne objects, including gliders, hang-gliders, paragliders, microlights, balloons, parachutists etc.;
- enable the remote pilot to determine the in-flight meteorological conditions;
- avoid hazardous weather; and
- detect and avoid terrain and other obstacles.
NOTE 2 UK CAA, CAP 722, Unmanned aircraft system operations in UK airspace – Policy and guidance [19]] lists the five sub-functions of DAA: detect, decide, command, execute, and feedback loop.
NOTE 3 DAA can incorporate the use of various sensors, architectures, multiple integrated systems, a human-in-the-loop (3.1.87), human-on-the-loop (3.1.88) or no human involvement at all.
NOTE 4 A DAA system can have distributed components (e.g. on the ground, in the air or aboard satellites) and be described according to where the DAA sub-functions are carried out as either airborne DAA (3.1.5), ground-based DAA (3.1.84) or hybrid DAA (3.1.91).
[SOURCE: ICAO, Annex 2 to the Convention on International Civil Aviation, Rules of the Air] [20]
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BSI Flex 1903 v2:2024-06 community preview
This is an interactive version 2 of BSI Flex 1903. The aim of the standard is to create a lexicon of standard terms and acronyms used in this sector. Please note, content is still undergoing internal review and there may be minor changes at full publication.
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detect and avoid (DAA)
Updated