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