Title :
Improving the Azimuthal Resolution of HFSWR With Multiplicative Beamforming
Author :
Guinvarc, Régis ; Gillard, Raphaël ; Uguen, Bernard ; El-Khoury, Jacques
Author_Institution :
E3S/SONDRA, Supelec, Gif-sur-Yvette, France
Abstract :
The use of multiplicative beamforming is described to improve the azimuthal resolution of existing high-frequency surface-wave radar (HFSWR). An existing method by Davies and Ward is used to improve the resolution by a factor of more than two for HFSWR with 16 antennas. The long integration time of HFSWR suppresses the cross products which are the usual drawbacks of this process. The concept is then validated on experimental data with synthetic targets.
Keywords :
antenna arrays; array signal processing; radar antennas; radar signal processing; signal resolution; HFSWR; antenna; azimuthal resolution improving; cross product suppression; high-frequency surface-wave radar; multiplicative beamforming; synthetic target; Antenna arrays; Array signal processing; Arrays; Doppler effect; Radar; Radar antennas; Doppler measurements; phased arrays; radar antennas;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2012.2186117
