Tracking filter for nonballistic targets based on MVSIMM algorithm in the near space

As the representative of hypersonic vehicles in the near space,X-51A and HTV-2 with characteristics of high speed and irregular acceleration often adopt the way of nonballistic maneuver flight, which cannnot make an accurate estimation of state of motion. This paper focuses on four typical nonballistic maneuver models of near space targets, proposes a kind of new Modified Variable Structure Interacting Multiple Model(MVSIMM)algorithm. The effect of MVSIMM algorithm is better than Fixed Structure Interacting Multiple Model(FSIMM) filter algorithm towards four nonballistic maneuver models with Matlab simulation results above.