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Results report average warning and corrective alert times against 25 s and 55 s requirements.",{"@graph":14,"@context":73},[15,34,56],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/research-report/","Research & 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objective of the study?","Question",{"text":63,"@type":64},"Compute the DAA average alert time supported by the field of regard (FOR) for ATAR classes A1, A2, and A3 using a specified alerting algorithm configuration.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"What encounters and altitude limits are analyzed?",{"text":68,"@type":64},"Encounters are limited to those between 500 ft AGL and 10,999 ft MSL.",{"name":70,"@type":61,"acceptedAnswer":71},"How do the warning and corrective alert times compare with the stated requirements?",{"text":72,"@type":64},"Average warning alert time meets the 25-second requirement, while average corrective alert time is close to the 55-second 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\nSeptember 4, 2020 UAS INTEGRATION IN THE NAS  \nObjective  \n• Compute the Detect-and-Avovid (DAA) average alert time supported by the field of regard (FOR) of air-to-air radar (ATAR) classes A1, A2, and A3  \n\n| ATAR Class | Turn Rate (deg/sec) | Minimum UA speed (KTAS) | Maximum UA speed (KTAS) |\n| --- | --- | --- | --- |\n| A1 | 1.5 | 100 | 291 |\n| A2 | 3 | 40 | 200 |\n| A3 | 7 | 40 | 110 |\n\nEncounter Set  \n• 17,100 hours of projected UAS mission trajectories in one day overlaid with each of 21 days’ radar recorded visual flight rules (VFR) traffic  \n• Only encounters between 500 ftAGL and 10,999 ft MSL are analyzed  \nSpeed and Altitude of UAS and VFR Traffic  \nAlerting Algorithm Configuration  \n• Detect and AvoID Alerting Logic for Unmanned Systems (DAIDALUS) version 2e  \n– Non-cooperative well clear with a buffered horizontal miss distance  \n– 60 seconds to (buffered) loss of well clear for corrective alerts  \n– 30 seconds to (buffered) loss of well clear for warning alerts  \nField of Regard (FOR)  \nAzimuth range ±110°  \nElevation range ± 15°  \nThe following RDRs (smaller than DO-366A by ~5% ) were applied to the simulations  \n\n| A1 |  |  |  |  |\n| --- | --- | --- | --- | --- |\n| RDR (nmi) | 0-30 deg | 30-60 deg | 60-90 deg | 90-110 deg |\n| Small | 4.88 | 2.86 | 1.61 | 0.00 |\n| Medium | 5.25 | 3.52 | 2.65 | 1.34 |\n| Large | 5.75 | 4.37 | 3.82 | 2.29 |\n|  |  |  |  |  |\n| A2 |  |  |  |  |\n| RDR (nmi) | 0-30 deg | 30-60 deg | 60-90 deg | 90-110 deg |\n| Small | 3.58 | 2.46 | 1.36 | 0.00 |\n| Medium | 3.94 | 3.06 | 2.04 | 1.15 |\n| Large | 4.42 | 3.73 | 3.16 | 1.87 |\n|  |  |  |  |  |\n| A3 |  |  |  |  |\n| RDR (nmi) | 0-30 deg | 30-60 deg | 60-90 deg | 90-110 deg |\n| Small | 2.45 | 2.10 | 1.99 | 1.43 |\n| Medium | 2.80 | 2.54 | 2.50 | 1.99 |\n| Large | 3.44 | 3.16 | 3.11 | 2.71 |\n\n6  \nAverage Alert Times  \nNote: A2 results cover ownship speed 100 to 200 KTAS 7  \nDiscussion  \n• Average warning alert time meets the requirement of 25 seconds .  \n• Average corrective alert time is close to the requirement of 55 seconds .  \n• Increasing DAIDALUS’s corrective alert time parameter further from 60 seconds may increase the average alert time to some extent but has not been tested.","cbCaiaVSklc5WUvT","https://ap.wps.com/l/cbCaiaVSklc5WUvT","pdf",4218439,"English","# Objective\n# Encounter Set\n# Speed and Altitude of UAS and VFR Traffic\n# Alerting Algorithm Configuration\n## Detect-and-Avoid Alerting Logic for Unmanned Systems (DAIDALUS) Version 2e\n# Field of Regard (FOR)\n## Azimuth and Elevation Ranges\n# Average Alert Times\n# Discussion","[{\"question\":\"What is the main objective of the study?\",\"answer\":\"Compute the DAA average alert time supported by the field of regard (FOR) for ATAR classes A1, A2, and A3 using a specified alerting algorithm configuration.\"},{\"question\":\"What encounters and altitude limits are analyzed?\",\"answer\":\"Encounters are limited to those between 500 ft AGL and 10,999 ft MSL.\"},{\"question\":\"How do the warning and corrective alert times compare with the stated requirements?\",\"answer\":\"Average warning alert time meets the 25-second requirement, while average corrective alert time is close to the 55-second requirement.\"}]","Average Alert Times Supported by ATAR Classes A1, A2, and A3 - Analysis Results | PDF"]