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- Angle_of_arrival abstract "Angle of arrival (AoA) measurement is a method for determining the direction of propagation of a radio-frequency wave incident on an antenna array. AoA determines the direction by measuring the Time Difference of Arrival (TDOA) at individual elements of the array -- from these delays the AoA can be calculated. Generally this TDOA measurement is made by measuring the difference in received phase at each element in the antenna array. This can be thought of as beamforming in reverse. In beamforming, the signal from each element is delayed by some weight to "steer" the gain of the antenna array. In AoA, the delay of arrival at each element is measured directly and converted to an AoA measurement.Consider, for example, a two element array spaced apart by one-half the wavelength of an incoming RF wave. If a wave is incident upon the array at boresight, it will arrive at each antenna simultaneously. This will yield 0° phase-difference measured between the two antenna elements, equivalent to a 0° AoA. If a wave is incident upon the array at broadside, then a 180° phase difference will be measured between the elements, corresponding to a 90° AoA.A current application of AoA is in the geodesic location or geolocation of cell phones. The aim is either to comply with regulations that require cell systems to report the location of a cell phone placing an emergency (i.e., 911) call or to provide a special service to tell the bearer of the cell phone where he is. Multiple receivers on a base station would calculate the AoA of the cell phone's signal, and this information would be combined to determine the phone's location on the earth. AoA is generally used to discover the location of pirate radio stations or of any military radio transmitter.In submarine acoustics, AoA is the method to localize objects with active or passive ranging.In optics, AoA is considered from the perspective of interferometry.".
- Angle_of_arrival wikiPageID "2201447".
- Angle_of_arrival wikiPageLength "2344".
- Angle_of_arrival wikiPageOutDegree "26".
- Angle_of_arrival wikiPageRevisionID "544058678".
- Angle_of_arrival wikiPageWikiLink Acoustics.
- Angle_of_arrival wikiPageWikiLink Antenna_array.
- Angle_of_arrival wikiPageWikiLink Beamforming.
- Angle_of_arrival wikiPageWikiLink Category:Geolocation.
- Angle_of_arrival wikiPageWikiLink Category:Radio_terminology.
- Angle_of_arrival wikiPageWikiLink Category:Tracking.
- Angle_of_arrival wikiPageWikiLink Category:Wireless_locating.
- Angle_of_arrival wikiPageWikiLink Cell_phone.
- Angle_of_arrival wikiPageWikiLink GNSS.
- Angle_of_arrival wikiPageWikiLink GSM_localization.
- Angle_of_arrival wikiPageWikiLink Geodesic.
- Angle_of_arrival wikiPageWikiLink Geolocation.
- Angle_of_arrival wikiPageWikiLink Interferometry.
- Angle_of_arrival wikiPageWikiLink Military.
- Angle_of_arrival wikiPageWikiLink Mobile_phone.
- Angle_of_arrival wikiPageWikiLink Mobile_phone_tracking.
- Angle_of_arrival wikiPageWikiLink Multilateration.
- Angle_of_arrival wikiPageWikiLink Optics.
- Angle_of_arrival wikiPageWikiLink Pirate_radio.
- Angle_of_arrival wikiPageWikiLink Radiolocation.
- Angle_of_arrival wikiPageWikiLink Ranging.
- Angle_of_arrival wikiPageWikiLink Satellite_navigation.
- Angle_of_arrival wikiPageWikiLink Submarine.
- Angle_of_arrival wikiPageWikiLink TDOA.
- Angle_of_arrival wikiPageWikiLink Time_of_arrival.
- Angle_of_arrival wikiPageWikiLink Triangulation.
- Angle_of_arrival wikiPageWikiLink Trilateration.
- Angle_of_arrival wikiPageWikiLink WSDMA.
- Angle_of_arrival wikiPageWikiLink Wsdma.
- Angle_of_arrival wikiPageWikiLinkText "Angle of arrival".
- Angle_of_arrival wikiPageWikiLinkText "AoA".
- Angle_of_arrival wikiPageWikiLinkText "angle of arrival".
- Angle_of_arrival hasPhotoCollection Angle_of_arrival.
- Angle_of_arrival subject Category:Geolocation.
- Angle_of_arrival subject Category:Radio_terminology.
- Angle_of_arrival subject Category:Tracking.
- Angle_of_arrival subject Category:Wireless_locating.
- Angle_of_arrival hypernym Method.
- Angle_of_arrival type Software.
- Angle_of_arrival type Geocode.
- Angle_of_arrival comment "Angle of arrival (AoA) measurement is a method for determining the direction of propagation of a radio-frequency wave incident on an antenna array. AoA determines the direction by measuring the Time Difference of Arrival (TDOA) at individual elements of the array -- from these delays the AoA can be calculated. Generally this TDOA measurement is made by measuring the difference in received phase at each element in the antenna array. This can be thought of as beamforming in reverse.".
- Angle_of_arrival label "Angle of arrival".
- Angle_of_arrival sameAs AoA.
- Angle_of_arrival sameAs m.06vht_.
- Angle_of_arrival sameAs Q4763363.
- Angle_of_arrival sameAs Q4763363.
- Angle_of_arrival wasDerivedFrom Angle_of_arrival?oldid=544058678.
- Angle_of_arrival isPrimaryTopicOf Angle_of_arrival.