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- W2358902053 abstract "Geometry location process is introduced and the error of geometry location is analyzed according to the simulation.To deal with the problem that geometry location with a big error is closely associated with the magnitude of pitch line of sight,extended Kalman filter algorithm(EKF)is utilized to restrain the effect of measure noise and the location precision of aircraft is improved.State-space model of aircraft movement is established and linearization process is carried as the observation equation has a nonlinear characteristic.On this basis,EKF algorithm is adopted to estimate the space position coordinate of aircraft.The factors that affect the position precision of filter algorithm are analyzed and some simulations among different flight height have been done.The simulation results demonstrate that the proposed algorithm has a fast convergence velocity and has a high position precision and the effect of the measure noise is reduced.So the algorithm has a certain engineering application value." @default.
- W2358902053 created "2016-06-24" @default.
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- W2358902053 date "2013-01-01" @default.
- W2358902053 modified "2023-09-23" @default.
- W2358902053 title "Image assistant location algorithm based on EKF" @default.
- W2358902053 hasPublicationYear "2013" @default.
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