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中南大学学报(英文版)

Journal of Central South University

Vol. 26    No. 3    March 2019

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Fast integrated guidance and control with global convergence
SONG Hai-tao(宋海涛)1, ZHANG Tao(张涛)2

1. High-Tech Institute of Xi’an, Xi’an 710025, China;
2. Department of Automation, Tsinghua University, Beijing 100084, China

Abstract:A global fast convergent integrated guidance and control design approach is proposed. A disturbance observer is utilized to estimate the uncertainties of integrated guidance and control model in finite time. According to the multiple sliding-mode surface control, the independent nonsingular terminal sliding functions are presented in each step, and all the sliding-mode surfaces run parallel. These presented sliding-mode surfaces keep zero value from a certain time, and the system states converge quickly in sliding phase. Therefore, the system response speed is increased. The proposed method offers the global convergent time analytically, which is useful to optimize the transient performance of system. Simulation results are used to verify the proposed method.

 

Key words: integrated guidance and control (IGC); global convergence; disturbance observer; multiple sliding-mode surface control

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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