Title :
Influence of the Waveform on Propagation and Sea Radar Cross Section of HF Radar Signals
Author :
Le Caillec, Jean-Marc ; Mandridake, Laurent
Author_Institution :
Telecom-Bretagne, Brest, France
Abstract :
In this paper, we derive the backscattering coefficient/forward propagation equation for frequency-modulated waves of high-frequency radar over the sea. Numerical simulations have been performed in order to compare the characteristics of a constant frequency and frequency-modulated electromagnetic wave in the function of sea state and index profile. From these simulations, we have drawn some conclusion on the differences in the Doppler spectrum observed for the two waveforms.
Keywords :
FM radar; HF radio propagation; backscatter; electromagnetic wave scattering; numerical analysis; radar cross-sections; radar signal processing; Doppler spectrum; HF radar signals; backscattering coefficient; forward propagation equation; frequency-modulated electromagnetic wave; high-frequency radar; index profile; numerical simulations; sea radar cross section; sea state function; Backscatter; Equations; Impedance; Radar; Sea surface; Surface impedance; Surface waves; Chirp radar; HF radio propagation; high-frequency (HF) radar; sea surface electromagnetic scattering; signal processing;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2014.2308907
