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A frequency averaging method to improve sea-state measurements with a HF skywave radar

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1 Author(s)
Parent, J. ; Laboratoire de Physique de l''Exosphère, Université Paris VI, Paris Cedex 05, France

A frequency averaging method which can improve the quality of averaged spectra of HF signals scattered by the sea is described. The method is compared to the classical single frequency pulse-radar. Using the skywave radar of Valensole, the statistical independence of signals scattered by the sea at close frequencies is experimentally verified. Spectra of signals reflected by anF2ionospheric layer are presented to illustrate the method. The possibility of further reducing interference by introducing the method in frequency modulated continuous wave (FMCW) systems is discussed.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:35 ,  Issue: 4 )

Date of Publication:

Apr 1987

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