Xuanming Ren, Xinmin Tang, Yang Zhou, Xiangmin Guan
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Improved Variable Structure Interacting Multimodels for Target Trajectory Tracking and Extrapolation
To improve the lengthy computation time of conventional variable structure interacting multiple model (VSIMM) algorithm and increase the precision of target prediction and extrapolation, the target state and flight intent information captured by the Automatic Dependent Surveillance-Broadcast (ADS-B) are used as the model’s prior information; combining this information with VSIMM theoretical framework, we purpose an intent variable structure interacting multiple model (INT-VSIMM) algorithm. Firstly, the motion pattern of the target in the flight phase of the flight path is decomposed, and complete sets of motion models are established. Secondly, according to the principle of directed graph switching, a model set switching method is designed, which is mainly based on “hard” switching and supplemented by “soft” switching. Finally, the INT-VSIMM algorithm is used to track the trajectory of the target aircraft, and short-term trajectory extrapolation is performed based on the target state estimation. The simulation results show that the target tracking performance computational time based on the INT-VSIMM algorithm is superior to the comparative existing methods, and the extrapolated trajectory has less error in the short term, which can satisfy the needs of conflict detection.
期刊介绍:
International Journal of Aerospace Engineering aims to serve the international aerospace engineering community through dissemination of scientific knowledge on practical engineering and design methodologies pertaining to aircraft and space vehicles.
Original unpublished manuscripts are solicited on all areas of aerospace engineering including but not limited to:
-Mechanics of materials and structures-
Aerodynamics and fluid mechanics-
Dynamics and control-
Aeroacoustics-
Aeroelasticity-
Propulsion and combustion-
Avionics and systems-
Flight simulation and mechanics-
Unmanned air vehicles (UAVs).
Review articles on any of the above topics are also welcome.