[9] SONG J M, ZHANG T Q.Passive homing missiles variable structure proportional navigation with terminal angular constraint[J].Chinese Journal of Aeronautics, 2001, 14(2): 83-87.
[10] QIN T, CHEN W C, XING X L.A method for precision missile guidance with impact attitude angle constraint [J].Journal of Astronautics, 2012, 33(5): 570-576.
[13] KUMAR S R, RAO S, GHOSE D.Nonsingular terminal sliding mode guidance with impact angle constraints[J].Journal of Guidance, Control and Dynamics, 2014, 22(5): 1114-1130.
[14] ZHAO Y, SHENG Y Z, LIU X D.Sliding mode control based guidance law with impact angle constraint[J].Chinese Journal of Aeronautics, 2014, 27(1): 145-152.