Kalman Filtering Consultant Associates - Internationally recognized instructor and author Dr. M. S. Grewal--35+ years experience--"the guy who wrote the books"Instructor named in "50+ Leaders to Watch" in GPS World May 2007 issueNew updated course! Even more examples of GPS/INS integration!Appli Kalmanfilteringgpsins.com~Site InfoWhoisTrace RouteRBL Check