Nonlinear optimal tracking for missile gimbaled seeker using finite-horizon state dependent riccati equation

Ahmed Khamis, D. Subbaram Naidu, Ahmed M. Kamel

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The majority of homing guided missiles use gimbaled seekers. The equations describing seeker gimbal system are highly nonlinear. Accurate nonlinear control of the motion of the gimbaled seeker through the attached DC motors is required. In this paper, an online technique for finite-horizon nonlinear tracking problems is presented. The idea of the proposed technique is the change of variables that converts the nonlinear differential Riccati equation to a linear Lyapunov differential equation. The proposed technique is effective for wide range of operating points. Simulation results for a realistic gimbaled system with different engagement scenarios are given to illustrate the effectiveness of the proposed technique.

Original languageEnglish (US)
Pages (from-to)165-171
Number of pages7
JournalInternational Journal of Electronics and Telecommunications
Volume60
Issue number2
DOIs
StatePublished - Jun 2014

Keywords

  • Finite-Horizon state dependent Riccati equation
  • Gimbaled missile seeker
  • Nonlinear tracking

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