International Journal of Control, Automation, and Systems

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Absolute Stability Margins in Missile Guidance Loop

  • Kim, Jong-Ju (Agency for Defense Development) ;
  • Lyou, Joon (Department of Electronics Engineering, Chungnam National University)
  • Published : 2008.06.30
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Abstract

This paper deals with the stability analysis of a missile guidance loop employing an integrated proportional navigation guidance law. The missile guidance loop is formulated as a closed-loop control system consisting of a linear time-invariant feed-forward block and a time-varying feedback gain. Based on the circle criterion, we have defined the concept of absolute stability margins and obtained the gain and phase margins for the system assuming 1 st order missile/autopilot dynamics. The correlation between the absolute stability margins and the margins derived from the frozen system analysis is also discussed.

Keywords

References

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