1. A method for acquiring SAR images for interferometric processing, comprising acquiring, by one or more airborne SAR sensors, SAR images of one and the same area with an acquisition geometry such that to enable interferometric processing of said SAR images; said method being characterized by an acquisition geometry in which each SAR image of the area is acquired in a respective direction of acquisition that defines a respective squint angle with respect to the direction of flight and in which the squint angles are such that to determine a mean squint angle different from zero.