Synthetic aperture radar

Details Synthetic aperture radar Synthetic aperture radar

G - Physics

01

S

G01S 13/90 (2006.01) G01S 7/292 (2006.01) G01S 13/22 (2006.01)

Patent

CA 2628160

A method of operating synthetic aperture radar in a low PRF mode, comprising generating a stream of radar pulses, imposing onto said stream a predetermined modulation of the Pulse Repetition Frequency (PRF), directing said stream to a target area, and processing received pulses, comprising separating the received pulses as a sequence of sets, and superposing received radar pulses of said sets, whereby to enhance the central received lobe and to attenuate side lobes.

L'invention concerne un procédé d'exploitation d'un radar à synthèse d'ouverture dans un mode basse fréquence de répétition des impulsions (low PRF). Ce procédé consiste à : émettre un flux d'impulsions radar ; soumettre le flux à une modulation prédéterminée de fréquence de répétition des impulsions (PRF) ; diriger le flux sur une zone cible ; traiter les impulsions reçues en les séparant en une séquence d'ensembles; et enfin, superposer les impulsions radar reçues desdits ensembles de façon à accentuer le lobe central reçu et atténuer les lobes latéraux.

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