Articles | Volume 26, issue 9
Ann. Geophys., 26, 2923–2927, 2008
https://doi.org/10.5194/angeo-26-2923-2008

Special issue: 13th International EISCAT Workshop

Ann. Geophys., 26, 2923–2927, 2008
https://doi.org/10.5194/angeo-26-2923-2008

  24 Sep 2008

24 Sep 2008

Transmission code optimization method for incoherent scatter radar

J. Vierinen1, M. S. Lehtinen1, M. Orispää1, and I. I. Virtanen2 J. Vierinen et al.
  • 1Sodankylä Geophysical Observatory, 99600 Sodankylä, Finland
  • 2Department of Physical Sciences, University of Oulu, P.O. Box 3000, 90014 Oulu, Finland

Abstract. When statistical inversion of a lag profile is used to determine an incoherent scatter target, the posterior variance of the estimated target can be used to determine how well a set of transmission codes perform. In this work we present an incoherent scatter radar transmission code optimization search method suitable for different modulation types, including binary phase, polyphase and amplitude modulation. We found that the combination of amplitude and phase modulation provides better performance than traditional binary phase coding, in some cases giving better accuracy than alternating codes.