The tracing algorithm of re-entry vehicle based on SMO

Abstract

The tracing problem of a re-entry vehicle includes the characters of lacking prior information on the target and disturbances. Thus, the classic nonlinear filtering algorithms are not suitable for high-accuracy tracing fields. In order to solve the problem, the tracing algorithm of a re-entry vehicle based on SMO is presented in this paper. SMO stems from the depth research of sliding mode control, which has nice robustness to disturbances and model error. The results of the simulation show that the tracing algorithm based on SMO has high accuracy and nice robustness.