Testing the VOR (VHF Omnidirectional Range) in the stratosphere: STRATONAV experiment

Marzioli, Paolo; Pellegrino, Alice; Valdatta, Marcello; Curianò, Federico; Angeletti, Federica; Frezza, Lorenzo; Gianfermo, Andrea; Arena, Lorenzo; Cardona, Tommaso; Piergentili, Fabrizio; Santoni, Fábio

doi:10.1109/metroaerospace.2016.7573237

Cited by 5 publications

(3 citation statements)

References 6 publications

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“…9. Finally, radials acquired through the first 5 seconds from frequency tuning were eliminated in order to consider errors due to the COTS receiver measurement settling time (described in [22]) in the data analysis.…”

Section: Cots Receiver Radial Acquisitionmentioning

confidence: 99%

“…High Altitude Navigation VOR stations (HVOR-NAV) are usually characterized by a 200 W emitted power ( [3]), and their SSV is defined as a cylinder of radius 185 Km (100 NM) and height 16700 m (55000 ft) ( [6][7][8]). However, power density and link budget calculations [9] demonstrate how acceptable power densities could be achieved beyond the current commercial aviation limit altitude for stratospheric vehicles even when considering the highest loss rates possible. The availability of the service is usually monitored by conventional fixed-wing aircraft [10], with a consequent impossibility to verify the VOR accuracy flying nearby its approximated limit height.…”

Section: Introductionmentioning

confidence: 99%

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Experimental validation of VOR (VHF Omni Range) navigation system for stratospheric flight

et al. 2021

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Section: Cots Receiver Radial Acquisitionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental validation of VOR (VHF Omni Range) navigation system for stratospheric flight

et al. 2021

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“…Depending on the position of a body in the space, receiving the VOR signal, this body receives the information of its position related to the north reference, see Figure 1. The space around the VOR is divided by 360 radials, given a resolution of 1 • , with each one carrying information about its angular orientation in relation to the North magnetic [20]. Using the aeronautical nomenclature for Navigation Aids equipment, the radials are numbered by their angles in reference to the North magnetic, in a clockwise direction [21].…”

Section: Methodsmentioning

confidence: 99%

The Feasibility of Remotely Piloted Aircrafts for VOR Flight Inspection

Costa

Oliveira

d’Amore

2020

Sensors

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This article analyzes the use of Remotely Piloted Aircrafts (RPA) in VOR (Very High Frequency Omnidirectional Range) flight inspection. Initially, tests were performed to check whether the Autopilot Positioning System (APS) met the regulatory requirements. The results of these tests indicated that the APS provided information within the standard regulations. A Hardware in the Loop (HIL) platform was implemented to perform flight tests following the waypoints generated by a mission automation routine. One test was performed without introducing disturbance into the proposed test platform. The other four tests were performed introducing errors in latitude and longitude in the APS into the platform. The errors introduced had the same characteristics as those measured in the initial tests, in order for the simulation tests to be as similar as possible to the real situation. The tests performed with positioning errors only did not lead to false misalignment detection. However, introducing positioning errors and a 4° VOR misalignment error, a misalignment of 3.99° was observed during the flight test. This is a value greater than the maximum one allowed by the regulations, and the system indicates the VOR misalignment. Five flight inspection tests were performed. In addition to the APS errors, tests with a modulation error were also conducted. Introducing a 4° VOR misalignment in conjunction with modulation error, a misalignment of 4.02° was observed, resulting in successful misalignment detection.

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