Aiming at the pairing issue for flight plan which contains a airspace phase but without SSR(secondary surveillance radar) code,a novel method based on SSR code set for matching plan and track was proposed.Firstly,the boundary search algorithm was used to extract the contour of track,then for computing the matching confident factor the planned trajectory of flight plan was splited into route phase and airspace phase,and compared with the presettable threshold to determine the partnership between flight plan and track.At the same time,a novel time series classification learning method based on the trajectory of historical track was presented to deal with the issue of long term flight plan because of its property of invariance plan trajectory.The result of the application of a large scaled flow management system proved that the proposed algorithm can not only solve the pairing problems of the general flight plan,but also solve the flight plan without SSR code with a good adaptability.
