Patent ID: 7612710

Claim:
A method comprising: merging live radar data and virtual radar data to form merged data; tagging the merged data with a virtual tag indicator to indicate a presence of the virtual radar data; for each receive time window, determining if the virtual radar data is present from the virtual tag indicator; tagging a detection with a virtual tag if the virtual radar data is present; tagging detections with a live tag if the virtual radar data is not present, and implementing tagging rules to identify live tracks and virtual tracks, the tagging rules comprising: tagging a track that originated in a virtual tagged beam as a virtual track; tagging a track that originated outside of the virtual tagged beam as a live track; tagging a track that originated in the virtual tagged beam and subsequently moves out of the virtual tagged beam as a live track after leaving the virtual tagged beam; and tagging a previously tagged live track as a live track for the remainder of its existence.