Abstract :
The subject of this article, the 4th ONR/GTRI Workshop on Target Tracking and Sensor Fusion was held at the Naval Postgraduate School in Monterey, California in May 2001. The people who meet at this share a common interest in and around the tracking area, and perforce owe much to Yaakov. On the day following the workshop, most of the participants moved across the NPS campus for The Workshop on Estimation, Tracking and Fusion: A Tribute to Yaakov Bar-Shalom, a remarkable two-part event in honor of Yaakov´s 50th birthday