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Alpha-Beta Filter with Correlated Measurement Noise
Authors:Rogers  SR
Institution:ELTA Electronics P.O. Box 330 Ashdod, Israel;
Abstract:For many tracking applications, the measurement errors onsuccessive observations are correlated. Using a first-order Markov model for the correlation, we present analytical expressions for the time-varying covariance and gains of an alpha-beta tracking filter.To a good approximation, the effect of correlation is to increase the time interval between measurements by a factor (1+a)/(1-a),where a is the coefficient of correlation between successive measurements.
Keywords:
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