A New Sliding Mode Control Algorithm of IGC System for Intercepting Great Maneuvering Target Based on EDO

Kang Niu, Xi Chen, Di Yang, Jiaxun Li, Jianqiao Yu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number7618
JournalSensors
Volume22
Issue number19
DOIs
Publication statusPublished - Oct 2022

Keywords

  • IGC system
  • control algorithm
  • extended disturbance observer (EDO)
  • great maneuvering target
  • sliding mode control

Fingerprint

Dive into the research topics of 'A New Sliding Mode Control Algorithm of IGC System for Intercepting Great Maneuvering Target Based on EDO'. Together they form a unique fingerprint.

Cite this