Title :
Remote sea current sensing using HF radar: an autoregressive approach
Author :
Martin, R.J. ; Kearney, M.J.
Author_Institution :
Hirst Res. Centre, GEC-Marconi Ltd., Borehamwood, UK
fDate :
1/1/1997 12:00:00 AM
Abstract :
We present and demonstrate a new method for accurately determining the radial component of sea current, using information derived from HF radar returns. The method uses autoregressive modeling and constrains the estimated frequency separation of the first-order Bragg lines to be its required theoretical value of 2√(gf/πc), where f is the radar frequency
Keywords :
CW radar; Doppler radar; autoregressive processes; frequency estimation; geophysical signal processing; ocean waves; oceanographic techniques; radar clutter; radar cross-sections; radar signal processing; remote sensing by radar; Bragg scattering; Doppler radar return; FFT; HF radar:; algorithm; autoregressive modeling; clutter; first-order Bragg lines; frequency separation; pulsed CW transmission; radar frequency; radial component; remote sea current sensing; surface wave radar; time-domain model; Clutter; Constraint theory; Doppler radar; Frequency estimation; Hafnium; Marine vehicles; Optical reflection; Radar remote sensing; Sea surface; Signal processing algorithms;
Journal_Title :
Oceanic Engineering, IEEE Journal of
