›› 2018, Vol. 44 ›› Issue (1): 38-44.doi: 10.3969/j.issn.1674-1579.2018.01.005

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DragTracking Guidance for Entry Vehicles with Finite Time

 YAN  Han, HE  Ying-Zi   

  1. 1.Beijing Institute of Control Engineering, Beijing 100190, China;2.Science and Technology on Space Intelligent Control Laboratory, Beijing 100190, China.
  • Online:2018-02-26 Published:2018-03-15
  • Supported by:

    Supported by State key Program of National Science of China (61403030).

Abstract: Abstract:A robust entry guidance law with finite time convergence is designed for dragtracking in this paper. The bank angle is regarded as the control variable. First, a robust sliding mode control (SMC) method, which can guarantee the finite time convergence, is proposed for a class of nonlinear systems with uncertainties and disturbances. Then, after the drag dynamics is given, the finite time guidance law is designed based on the proposed SMC method. A 1 000run Monte Carlo simulation shows the effectiveness of the presented approach.  

Key words: Keywords:entry vehicle, dragtracking, sliding mode control, finite time convergence, Monte Carlo simulation

CLC Number: 

  • V448.2