Variable Structure Guidance Law with Angular Constraint Design and Simulation for Maneuver Reentry Body

As a new technique,nonspinning reentry body maneuver guidance has many advantages and gets much attention from researchers of the control field.The nonspinning reentry body was taken as the research object and the variable guidance technique was applied to it.Several important problems in the application were researched.Older guidance laws’s design target was to get miss distance,and did not research the problem of terminal angular constraint.To solve the guidance problem of nonspinning reentry body upright attacking a target,a variable structure guidance law with angular constraint was designed.Simulation research shows that above terminal guidance laws can ensure the nonspinning warhead to attack a target with required miss distance and required terminal angle,and be applied to theory study and simulate validation of nonspinning reentry body guidance system.