Systems Engineering and Electronics ›› 2022, Vol. 44 ›› Issue (2): 619-627.doi: 10.12305/j.issn.1001-506X.2022.02.32

• Guidance, Navigation and Control • Previous Articles     Next Articles

Design of 3D nonlinear prescribed performance guidance law

Xiao TANG, Jikun YE*, Xu LI   

  1. Air and Missile Defence College, Air Force Engineering University, Xi'an 710051, China
  • Received:2021-03-17 Online:2022-02-18 Published:2022-02-24
  • Contact: Jikun YE

Abstract:

A prescribed performance guidance law for the terminal guidance phase is proposed for the interception of high speed maneuvering targets. At first, construct a three dimensional nonlinear block model, pitch and yaw of the two plane, will expect angle of sight and line of sight angular rate selected as state variable dynamic sliding mode surface design, on the basis of the dynamic surface control, the sliding mode error using the conversion function into the default performance error equation, design guidance law, drive the sliding mode variable according to the prescribed convergence performance.It can make the guidance go smoothly and satisfy the terminal line of sight angle constraint.Then, considering the measurement error of line of sight angular rate and the uncertainty of target information, a finite time disturbance observer is established to ensure the execution of guidance instruction.

Key words: sliding mode control, prescribed performance control, disturbance observer, three dimensional guidance law

CLC Number: 

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