Title :
Measurement of the Wind Vector Over Sea by an Airborne Radar Altimeter Using an Antenna Characterized by Different Beamwidth in the Vertical and Horizontal Planes
Author :
Nekrasov, Alexey
Author_Institution :
Sea & Land Remote Sensing Group, Taganrog Technol. Inst. of the Southern Fed. Univ., Taganrog
Abstract :
In this letter, a possibility of recovering the wind vector over sea using an airborne radar altimeter in a short-pulse scatterometer mode is discussed. The nadir-looking wide-beam antenna, with the modified beam shape forming an ellipse footprint, is assumed for the purpose of analysis. Simultaneous range Doppler discrimination techniques are also used and a measuring algorithm of the sea-surface wind speed and direction is proposed.
Keywords :
airborne radar; atmospheric techniques; radar altimetry; remote sensing by radar; wind; Doppler discrimination techniques; airborne radar altimeter; scatterometer mode; sea-surface wind direction; sea-surface wind speed; wide-beam antenna; wind vector measurement; Airborne radar; Antenna measurements; Doppler radar; Radar antennas; Radar measurements; Sea measurements; Sea surface; Spaceborne radar; Velocity measurement; Wind speed; Algorithm; radar altimeter; sea-wind retrieval;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2007.907303
