title: Spatial undersampling for synthetic aperture ultrasonic imaging via digital spotlighting technique.
abstract: High resolution ultrasonic imaging may be achieved via the synthetic aperture focusing technique, provided that the synthetic antenna is correctly spatially sampled. We show that spatial undersampling is possible, using a digital spotlighting technique that permits to recover the correct reconstructed images from aliased data. The proposed method is applied to experimental ultrasonic data.
authors.forename: T
authors.initials: T
authors.lastname: Rastello
authors.forename: D
authors.initials: D
authors.lastname: Vray
authors.forename: J
authors.initials: J
authors.lastname: Chatillon