Improving missile guidance performance by in-flight twostep nonlinear estimation of radome aberration

Pini Gurfil, N. Jeremy Kasdin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Scopus citations

Abstract

A new technique is presented for compensating radome-induced line-of-sight (LOS) aberrations in active radar-guided homing missiles based on a novel nonlinear estimation algorithm. Decoupling of radome errors from the nominal missile state is achieved by implementing a two-step estimator that utilizes non-linear measurements of the radomecorrupted azimuth and elevation LOS angles. Elaborate aerodynamic and kinematic models are used to establish a realistic interception setup, which constitutes a basis for a thorough performance evaluation and comparison of the new algorithm to a traditional extended Kalman filter. It is shown that the new approach requires neither specialized observability maneuver nor exogenous dithering to estimate the radome slopes. An unbiased, efficient estimates of radar slopes yielded by the new method permits considerable reduction of miss distance.

Original languageEnglish (US)
Title of host publicationAIAA Guidance, Navigation, and Control Conference and Exhibit
StatePublished - Dec 1 2003
EventAIAA Guidance, Navigation, and Control Conference and Exhibit 2003 - Austin, TX, United States
Duration: Aug 11 2003Aug 14 2003

Publication series

NameAIAA Guidance, Navigation, and Control Conference and Exhibit

Other

OtherAIAA Guidance, Navigation, and Control Conference and Exhibit 2003
CountryUnited States
CityAustin, TX
Period8/11/038/14/03

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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    Gurfil, P., & Jeremy Kasdin, N. (2003). Improving missile guidance performance by in-flight twostep nonlinear estimation of radome aberration. In AIAA Guidance, Navigation, and Control Conference and Exhibit (AIAA Guidance, Navigation, and Control Conference and Exhibit).