Estimating rotation speed from projections in SAR

Weitong Chuang, Thomas S Huang

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

Abstract

An algorithm is presented which estimates the rotation speed of an orbiting point in spotlight-mode synthetic aperture radar (SAR) systems. Current reconstruction algorithms for spotlight-mode SAR assume that the relative motion between radar and the object is known at all time instants. Although this is true, for example, for airborne terrain mapping radar, the assumption may not apply to all cases. For ground-based radar which is imaging an unidentified space object such as a satellite, the rotation speed of the object is usually unknown. Furthermore, for computer vision applications it is also very important to estimate the rotation speed for the purpose of motion estimation. The new algorithm can accurately estimate the rotation speed in most cases. Simulation results show that the average estimation error is less then 0.78%. For 99.33% of the cases, the estimation error is less than 3%. In the worst case, the error is still less than 6.68%.

Original languageEnglish (US)
Title of host publicationICASSP 1992 - 1992 International Conference on Acoustics, Speech, and Signal Processing
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages21-24
Number of pages4
ISBN (Electronic)0780305329
DOIs
StatePublished - Jan 1 1992
Event1992 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1992 - San Francisco, United States
Duration: Mar 23 1992Mar 26 1992

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume3
ISSN (Print)1520-6149

Other

Other1992 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 1992
Country/TerritoryUnited States
CitySan Francisco
Period3/23/923/26/92

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

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