TY - JOUR
T1 - A New Sliding Mode Control Algorithm of IGC System for Intercepting Great Maneuvering Target Based on EDO
AU - Niu, Kang
AU - Chen, Xi
AU - Yang, Di
AU - Li, Jiaxun
AU - Yu, Jianqiao
N1 - Publisher Copyright:
© 2022 by the authors.
PY - 2022/10
Y1 - 2022/10
N2 - To intercept the great maneuvering target, combining with the sliding mode and the extended disturbance observer, a new control algorithm for integrated guidance and control (IGC) system is proposed in this paper. Firstly, the paper formulates the Missile–Target problem. Then the paper establishes an uncertain IGC dynamic model where the nonlinearities, the perturbations and the maneuvering of the target are regarded as disturbance. Secondly, a second-order disturbance observer is designed to estimate the disturbance and their derivatives. After this, combining with the second-order disturbance observer, a modified sliding surface and the corresponding reaching law are designed to obtain the rudder deflection command directly. Thus, the real sense of IGC system is achieved. Next, the paper uses the Lyapunov stability theory to prove the stability of the system. Finally, the paper provides different simulation cases, which have different maneuver modes of the target, to demonstrate the superiority of the proposed method in reducing the response time, increasing the rudder response, and having a high interception probability.
AB - To intercept the great maneuvering target, combining with the sliding mode and the extended disturbance observer, a new control algorithm for integrated guidance and control (IGC) system is proposed in this paper. Firstly, the paper formulates the Missile–Target problem. Then the paper establishes an uncertain IGC dynamic model where the nonlinearities, the perturbations and the maneuvering of the target are regarded as disturbance. Secondly, a second-order disturbance observer is designed to estimate the disturbance and their derivatives. After this, combining with the second-order disturbance observer, a modified sliding surface and the corresponding reaching law are designed to obtain the rudder deflection command directly. Thus, the real sense of IGC system is achieved. Next, the paper uses the Lyapunov stability theory to prove the stability of the system. Finally, the paper provides different simulation cases, which have different maneuver modes of the target, to demonstrate the superiority of the proposed method in reducing the response time, increasing the rudder response, and having a high interception probability.
KW - IGC system
KW - control algorithm
KW - extended disturbance observer (EDO)
KW - great maneuvering target
KW - sliding mode control
UR - http://www.scopus.com/inward/record.url?scp=85139796858&partnerID=8YFLogxK
U2 - 10.3390/s22197618
DO - 10.3390/s22197618
M3 - Article
C2 - 36236718
AN - SCOPUS:85139796858
SN - 1424-8220
VL - 22
JO - Sensors
JF - Sensors
IS - 19
M1 - 7618
ER -