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On protecting the planet against cosmic attack: Ultrafast real-time estimate of the asteroid׳s radial velocity

Authors
  • Zakharchenko, V.D.
  • Kovalenko, I.G.1, 2
  • 1 Physicotechnical Institute
  • 2 Volgograd State University
Type
Published Article
Journal
Acta Astronautica
Publisher
Elsevier
Publication Date
Jan 01, 2014
Accepted Date
Feb 05, 2014
Volume
98
Pages
158–162
Identifiers
DOI: 10.1016/j.actaastro.2014.02.002
Source
Elsevier
Keywords
License
Unknown

Abstract

Highlights•A new method for line-of-sight velocity estimation of a high-speed NEO is suggested.•It appears preferable for use in orbital weapon systems of threat response.•The method is based on use of fractional, one-half order derivative of a Doppler signal.•The method allows an assessment of the mean frequency without spectral analysis.•The wait time can be shortened by orders of magnitude compared to spectral processing.

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