Adaptive two step method and its application in the interception of hypersonic random maneuvering target

The two step filter is suitable for the optimal estimation problem of systems with linear state function and nonlinear measurement function. This paper considered the problem of the interception of hypersonic random maneuvering target and for the special math model discussed, adaptive two step method was integrated with Fast MMAE method in order to detect and identify target maneuvering while filtering out the target acceleration information, needed for the implementation of the differential game guidance laws. Results from simulation verified the effectiveness of the proposed adaptive two step method.