
Accession Number : ADD016520
Title : Interacting Multiple Bias Model Filter System for Tracking Maneuvering Targets.
Descriptive Note : Patent, Filed 1 Jun 93, patented 28 Jun 94
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Blair, William D ; Watson, Gregory A ; Rice, Theodore R
Report Date : 28 Jun 1994
Pagination or Media Count : 13
Abstract : A filtering system used in the tracking of a maneuvering target is provided. A first filter estimates a partial system state at a time k in terms of target position measurements. A plurality of second filters are each provided with an acceleration model hypothesis from a prior time (k  1) free of position and velocity constraints. Each second filter generates an acceleration estimate at time k and a likelihood at time k that the acceleration model hypothesis is correct. The likelihoods from the second filters are summed to generate a probability vector at time k. A third interaction mixing filter generates the acceleration model hypotheses from prior time (k 1) using the probability vector from prior time (k  1) and the acceleration estimates from prior time (k  1).
Descriptors : *PATENTS, *KALMAN FILTERING, *TARGET DETECTION, ACCELERATION, ESTIMATES, FILTERS, HYPOTHESES, INTERACTIONS, PROBABILITY, TRACKING, VELOCITY, MAXIMUM LIKELIHOOD ESTIMATION, STATISTICAL PROCESSES, TARGET POSITION INDICATORS, MOVING TARGET INDICATORS, MATHEMATICAL MODELS
Subject Categories : Target Direction, Range and Position Finding
Statistics and Probability
Distribution Statement : APPROVED FOR PUBLIC RELEASE