Vehicle guidance system

摘要: Terminal guidance of vehicles is accomplished by accurately determining true position and speed the vehicle from terrain contour measurements updating a dead reckoning navigation system with precision to permit following programmed flight path. A narrow beam radar altitude sensor measures clearance altitudes reference above level. These are input digital processor for comparison stored data. Recursive data matching performed in nonlinear Kalman filtering technique provide velocity correction signals controller that generates steering commands control system. Three three generated updated give near real-time dimensional information.