Method and apparatus for determining whether two radar tracks represent the same physical object

摘要

An apparatus and computer-implemented method of determining a probability that a first track and a second track represent the same physical object. The apparatus and method fit a first order curve for a last n positions of the first track and the second track in a time domain; fit a second order curve for a last m (m>n) positions of the first track and the second track in the time domain; generate a maximum and minimum second order envelope for the first track and the second track, using a respective maximum acceleration of the first track and the second track; orthogonally place a probability curve over each of the first order curves for the first and second track, with each first order curve at a center of each probability curve for N sigmas extending to boundaries of each of the maximum and minimum second order envelopes; extract a first probability value from a point where the second order curve of the first track intersects the probability curve for the first track and a second probability value from a point where the second order curve of the second track intersects the probability curve for the first track; and determine the probability that the first track and the second track represent the same physical object from the first probability value and the second probability value.