Patent ID: 8052054

Claim:
A computer-implemented method for estimating track error covariance of a sensor track data in a Link 16 tactical data link network from track quality, said method comprising: receiving at a computer system the sensor track data on a ballistic target including the track quality from a target tracking sensor system; the computer system estimating a time that the target has been in ballistic track; the computer system estimating position error covariance eigenvalue (λ p ); the computer system estimating velocity error covariance eigenvalue (λ v ) from the estimated position error covariance eigenvalue (λ p ); the computer system estimating position error covariance (C p ); the computer system estimating velocity error covariance (C v ); and the computer system estimating an error covariance of the sensor track data from C p and C v , wherein the track error covariance of the sensor track data in a block matrix form is [ C P 0 3 0 3 C V ] , where 0 3 is a 3 by 3 zero matrix.