Electromagnetic Signals in Astronomy

  • Henning F. Harmuth
  • Konstantin A. Lukin


Most of the information we have obtained about the universe beyond the planet Earth came from electromagnetic waves, and most of the information obtained from electromagnetic waves came from steady state waves. Whenever received electromagnetic waves are decomposed into sinusoidal waves with various frequencies one thinks and acts in terms of steady state wave theory. The Doppler shift of a frequency—implied every time the term red-shift is used—is a steady state concept even though the Doppler effect is not. A frequency spectrum of received waves is a steady state concept.


Electromagnetic Wave Large Interval Rectangular Pulse Main Lobe Sinusoidal Wave 
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Copyright information

© Springer Science+Business Media New York 2000

Authors and Affiliations

  • Henning F. Harmuth
    • 1
  • Konstantin A. Lukin
    • 2
  1. 1.Formerly of The Catholic University of America
  2. 2.Institute of Radiophysics and ElectronicsAcademy of Sciences of UkraineKharkivUkraine

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