Abstract:Airborne laser communication has become the main way of large capacity space communication for the future,and real-time high-precision tracking system of a irborne laser communication platform has been already one of the most difficult problems.I n order to resolve the diversity of maneuvering forms for airborne platform,it is impossible to de scribe the maneuvering forms with fixed models.In the continuous time domain,three-order linear differential equation may be applied to describe the airborne laser terminal mot ion model with different parameter values,which can cover a wide variety of motion modes.It i s the important step to identify the parameter values according to the motion modes,the improved recursive least square method is adopted to identify parameter,it c an resolve observed data saturation and estimate divergence,the parameter identification a nd Kalman filter are combined to decide the state transition matrix,which may include a variety o f m otion states for airborne laser communication platform in Kalman model.Novel method that adopts laser beam to simulate maneuvering is proposed which can effectively simulate the maneuverin g forms.The experimental results show that the Kalman filter based on the parameter identification has advantages of high tracking precision,short response time and good tracking ability with differential models.