DGPS DGPS technology, system concepts, design, operation, implementation and applications, including detailed information on the GPS signal, its processing by the receiver, and the techniques by which GPS obtains position, velocity and time. This course is presented by two highly respected instructors who bring their unique experiences and professional expertise to the class. This course is similar to Course 346, except that Course has three additional hours of Differential GPS and two additional hours of Kalman filtering,