{"id":40,"date":"2017-01-26T19:54:15","date_gmt":"2017-01-26T19:54:15","guid":{"rendered":"https:\/\/uavrt.nau.edu\/?page_id=40"},"modified":"2019-06-27T14:29:43","modified_gmt":"2019-06-27T21:29:43","slug":"system_overview","status":"publish","type":"page","link":"https:\/\/uavrt.nau.edu\/index.php\/system_overview\/","title":{"rendered":"System Overview"},"content":{"rendered":"
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      UAV-RT System<\/h2>\n
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      The Unmanned Aerial Vehicle-Radio Telemetry (UAV-RT) system is designed to receive and record VHF signals from tagged wildlife and assist in localization of the animal. Using an autonomous drone, outfitted with a companion computer and software defined radio (SDR), users can create flight plans, collect radio data, and generate localization estimates for the tag. The system fully integrates a science and flight avionics payload, capable of on-board data storage and flight plan generation. On-board the UAV a companion computer is responsible for synchronizing vehicle data and incoming radio signal. In addition, this system host a local Wi-Fi network allowing easy remote connections in a field environment. It is important to distinguish between the UAV-RT system's two subsystems: flight and science avionics. The flight system is responsible for vehicle control and provides a live telemetry connection to the ground control station. The science payload\/avionics refers to the companion computer that collects the radio telemetry data, the SDR receiver, and the directional antenna. These subsystems are displayed graphically below.<\/p>\n

      \"System<\/p>\n

      The UAV-RT system uses a Pixhawk mini flight controller from 3DR allowing for both manual and autonomous control. Communication between the ground control station and the vehicle is maintained by a flight telemetry radio module (915MHz). Flight plans are developed on a ground control station using either APM Mission Planner<\/a> or QGroundControl<\/a> software. These flight plans are typically transferred to the vehicle before flight, guaranteeing the vehicle can maintain a stable autonomous flight even if the vehicle loses live telemetry to the pilot; however, live vehicle commands can also be made from the ground control station. Additionally, the vehicle can be flown in a manual mode where radio data can still be recorded and analyzed. Full vehicle documentation<\/a> provides complete build instructions and background research. In contrast to the flight avionics, radio telemetry is communicated to the ground control station via a local Wi-Fi hotspot. The science payload consists of an AirSpy (SDR unit), directional H-antenna, and an UDOO companion computer. The companion computer not only hosts a local network for remote communication, but also runs a GNU radio<\/a> script which saves the received signal locally for post-processing. Upon landing a MATLAB GUI is used to access the data from the UAV remotely and process, producing a location estimate for the VHF tag. Full documentation on the SDR system<\/a> is also available.<\/div>\n

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      Documentation<\/a>\u00a0 \u00a0\u00a0Publications<\/a>\u00a0 \u00a0\u00a0About<\/a><\/p>\n<\/div>\n

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      UAV-RT System The Unmanned Aerial Vehicle-Radio Telemetry (UAV-RT) system is designed to receive and record VHF signals from tagged wildlife and assist in localization of the animal. Using an autonomous drone, outfitted with a companion computer and software defined radio (SDR), users can create flight plans, collect radio data, and generate localization estimates for the […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"yoast_head":"\nSystem Overview | UAV-RT<\/title>\n<meta name=\"description\" content=\"The UAV-RT system is designed the receive and record VHF signals from tagged wildlife and assist in localization of the animal.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/uavrt.nau.edu\/index.php\/system_overview\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"System Overview | UAV-RT\" \/>\n<meta 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