TDOA_AOA positioning of the extended Kalman filter
2016-08-23
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TDOA/AOA is used more in the field of wireless location positioning of a system, the TDOA (time difference) are two base stations via the heartbeat of time instead of absolute time is reached to determine the location of mobile stations, reducing the time synchronization requires. Using three different base stations can detect two TDOA, the mobile station is located on the intersection of the two hyperbolic TDOA decisions. Reached AOA is angle ranging signals from reaching the point-based location algorithm is a typical localization algorithm based on location, reachable via a certain hardware device nodes sense signal an orientation, calculate the relative orientation between receiving and anchor nodes or angle, then use triangulation method or other methods to calculate the unknown node locations. Based on signals from reaching angles (AOA) algorithm is a kind of wireless sensor network node localization algorithms, algorithm with low communication overh
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