Loop-shaping approach to mitigate radome effects in homing missiles

Itzik Klein, Ilan Rusnak

Research output: Contribution to journalArticlepeer-review


SOME homing missiles have radomes, which are structures attached to the noses of missiles. Radomes are designed to protect the seeker antennamechanically and to reduce the aerodynamic drag of the missile [1-3]. The refraction of the electromagnetic wave by the radome causes an error in the line-of-sight (LOS) angle known as the radome aberration angle. In some situations, the radome error acts to destabilize the guidance loop because it creates a parasitic loop within the guidance homing loop. The consequence of the destabilizing effect is an increase in miss distance. A review of the literature on radome refraction phenomenon, its effect on the guidance performance of missiles, and mitigation techniques of this phenomenon revealed several papers worth mentioning. Nesline and Zarchan [4] derived an analytical stability analysis of the radome guidance system and found the stability regions of the guidance loop as a function of the missile parameters. Using their analysis, missile electromagnetic and aerodynamic properties can be altered to obtain miss distance performance that is compatiblewith system design objective. In [5], it was shownthatmodern optimal-based guidance laws suffermore from the induced radome error compared to the classical proportional navigation.

Original languageEnglish
Pages (from-to)1787-1793
Number of pages7
JournalJournal of Guidance, Control, and Dynamics
Issue number7
StatePublished - 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
Copyright © 2016 by the American Institute of Aeronautics and Astronautics, Inc.

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Aerospace Engineering
  • Space and Planetary Science
  • Electrical and Electronic Engineering
  • Applied Mathematics


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