Cooperative guidance law for multiple missiles simultaneous attacks with fixed-time convergence

Abstract

This paper considers the problem of multiple missiles to attack a maneuvering target simultaneously. Based on a fixed-time fast nonsingular terminal sliding mode surface (FNTSMS), fixed-time distributed cooperative guidance laws are developed. By designing guidance laws along and perpendicular to line of sight (LOS) direction, both relative velocity and range-to-go are consistent. In addition, a saturation function is introduced to avoid the chattering problem caused by the commonly used sign function. Furthermore, a distributed cooperative guidance law with communication failure is considered and proved theoretically, which shows that the proposed guidance law has excellent performance. Finally, the simulation results not only explain the performance of the distributed guidance law,but also verify the robustness against communication topology switching.

Keywords:

• Simultaneous attack
• distributed control
• multiple missile
• fixed-time control
• communication topology

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

Foundation strengthening plan technical field fund [grant number 2021-JCJQ-JJ-0597]. Postgraduate Research & Practice Innovation Program of Jiangsu Province[grant number KYCX20_0316].