Application of Adaptive Kalman Filter Technique in In-flight Moving Base Alignment for Inertial Navigation System

To satisfy the requirement of modern war,missiles need to be launched from the naval ships or airplanes.The inertial navigation system of the missile should be aligned before going working.A velocity matching alignment approach based on adaptive Kalman filter is put forward for missile inertial navigation system on moving base in flight.The paper gives the simulation of in-flight moving base alignment,which adopted Sage Husa adaptive Kalman filter algorithm.The validity of the proposed means is proved by the simulation result.