Application of curve fitting filtering at data processing of unmanned air vehicle

To study the problem of the real-time data processing in unmanned air vehicle's (UAV) navigation, a data filtering method with curve fitting extrapolation is presented. Based on the continuity of the information changing, the approximation of the real value is attained by curve fitting extrapolation. The measured information is classified by the difference between the value and the approximation and filtered by the presented structure model of the data processing. The method has no need for the transcendental information of measured data and has good real-time characteristic, stability and robustness. The simulation results show the effectiveness of the proposed method and model.