Dynamics and Control

, Volume 1, Issue 2, pp 177–198 | Cite as

Development of guidance laws for a variable-speed missile

  • R. Gazit
  • S. Gutman


The most used guidance law for short-range homing missiles is proportional navigation (PN). In PN, the acceleration command is proportional to the line-of-sight (LOS) angular velocity. Indeed, if a missile and a target move on a collision course with constant speeds, the LOS rate is zero. The speed of a highly maneuverable modem missile varies considerably during flight. The performance of PN is far from being satisfactory in that case.

In this article we analyze the collision course for a variable-speed missile and define a guidance law that steers the heading of the missile to the collision course. We develop guidance laws based on optimal control and differential game formulations, and note that both optimal laws coincide with the Guidance to Collision law at impact. The performance improvement of the missile using the new guidance law as compared to PN is demonstrated.


Angular Velocity Performance Improvement Constant Speed Differential Game Target Move 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • R. Gazit
    • 1
  • S. Gutman
    • 2
  1. 1.Faculty of Aerospace EngineeringTechnician-Israel Institute of TechnologyHaifaIsrael
  2. 2.Faculty of Mechanical EngineeringTechnician-Israel Institute of TechnologyHaifaIsrael

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