Patent ID: 6573858
Filing Date: 2003-06-03
Classification: G01S

Abstract:
A tandem-cycle target/track assignment method used in a combined radar/automatic dependent surveillance (ADS) environment comprising the following steps:(A) determining whether it is time to proceed to step (G); if not, going to step (B); otherwise going to step (G); (B) filtering out improper targets; (C) gating candidate tracks by selecting candidate tracks that potentially correlate with a reported target based on positions and velocities of the candidate tracks; (D) according to the candidate tracks' type and correlation conditions, further filtering candidate tracks selected in step (C) and calculating likelihood values representing degrees of correlation with the reported target for remaining tracks, and saving all likelihood values of track-target pairs for later processing in step (G); (E) determining whether tracks should be updated in steps (F) or (G) based on type of radar, track type, and correlation conditions; if tracks should be updated in step (F), going to step (F); otherwise going to step (G); (F) selecting a system track whose likelihood value is highest and updating it with the reported target; and then going to step (A); and (G) batch processing acquired data by running an auction algorithm to select best track-target pairs and updating system tracks with their best targets; and then going to step (A).