Sliding mode control and Lyapunov based guidance law with impact time constraints  

作　　者：Xiaojian Zhang Mingyong Liu Yang Li 

机构地区：[1]School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710021, China

出　　处：《Journal of Systems Engineering and Electronics》2017年第6期1186-1192,共7页系统工程与电子技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(51379176;51679201)

摘　　要：This paper analyses the issue of impact time control of super-cavitation weapons impact fixed targets which mainly refer to the ships or submarines who lost power, but still have combat capability. Control over impact time constraints of guidance law(ITCG) is derived by using sliding mode control(SMC) and Lyapunov stability theorem. The expected impact time is realized by using the notion of attack process and estimated time-to-go to design sliding mode surface(SMS). ITCG contains equivalent and discontinuous guidance laws, once state variables arrive at SMS,the equivalent guidance law keeps the state variables on SMS,then the discontinuous guidance law enforces state variables to move and reach SMS. The singularity problem of ITCG is also analyzed. Theoretical analysis and numerical simulation results are given to test the effectiveness of ITCG designed in this paper.This paper analyses the issue of impact time control of super-cavitation weapons impact fixed targets which mainly refer to the ships or submarines who lost power, but still have combat capability. Control over impact time constraints of guidance law(ITCG) is derived by using sliding mode control(SMC) and Lyapunov stability theorem. The expected impact time is realized by using the notion of attack process and estimated time-to-go to design sliding mode surface(SMS). ITCG contains equivalent and discontinuous guidance laws, once state variables arrive at SMS,the equivalent guidance law keeps the state variables on SMS,then the discontinuous guidance law enforces state variables to move and reach SMS. The singularity problem of ITCG is also analyzed. Theoretical analysis and numerical simulation results are given to test the effectiveness of ITCG designed in this paper.

关 键 词：Lyapunov stability sliding mode control impact time salvo attack TIME-TO-GO guidance law 

分 类 号：TJ6[兵器科学与技术—武器系统与运用工程] U674.703.4[交通运输工程—船舶及航道工程]