Research on the Application of Least Square Method in Extracting the Key Points of Flight Path
With the development of situational awareness means,the update frequency of waypoints of aircraft has been developed to the second level.On the one hand,the massive waypoint data pro-motes military application personnel to accurately grasp the real-time situation,on the other hand,mili-tary application personnel have to face such huge redundant data challenges as in storage,analysis and other aspects.As the present data analysis technology develops very fast,as for the specificity of com-mand and control system,there are still few engineering algorithms for stable implementation.The de-tailed problems in the engineering practice are focused on,the extraction method of key points of flight path based on the least square method is proposed.By constructing iterative judgement function,with such common used methods as piecewise iterative fitting polynomials and extreme value analysis,etc,the fast convergence and extraction of the key points of flight path is realized.Finally,the typical flight path is selected for the engineering verification.The experiments show that the extracted results with the proposed method can represent the action state of aircrafts to the maximum extent and can also save the calculation and storage resources as possible as it can and the method can be applied in the engi-neering practice of command and control system better.
flight path of aircraftleast square methodkey pointsextraction
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