Abstract: A method for monitoring surface deformations of a scenario by means of differential interferometry technique, including the steps of prearranging a radar sensor having a transmitting antenna and a receiving antenna arranged to transmit and acquire radar signals, the radar sensor arranged to move along a planar trajectory ? having centre O; defining a reference system S having origin in the centre O; acquiring by SAR technique the scenario by means of handling the radar sensor along the planar trajectory ?, the radar sensor being configured so that the radiation pattern of the antennas is oriented radially with respect to the centre O, the acquisition occurring at points of acquisition si arranged on the trajectory ?, the three-dimensional position of each target point ti being definable by means of spherical coordinates (?i,?i,?i).

Abstract: In a method for mitigating the blurring effect in a radar image (40) obtained by a ground-based radar system, thereof, a Pulse Repetition Frequency (PRF) value is selected (110) in a radar sensor unit (30) such that radial velocity measurements of the targets of an observed scenario can be made up to a maximum unambiguous velocity vmax, a radial velocity threshold is also selected (101) to discriminate between substantially stationary targets and possible fast-moving targets having radial velocities vR, j?v* and vR, f>v*, respectively.

Abstract: A method for monitoring surface deformations of a scenario by means of differential interferometry technique, said method comprising the steps of prearranging a radar sensor comprising at least one transmitting antenna and a receiving antenna arranged to transmission and acquisition of radar signals, said radar sensor arranged to move along a planar trajectory ? having centre O; defining a reference system S having origin in said centre O; acquiring by SAR technique said scenario by means of handling said radar sensor along said planar trajectory ?, said radar sensor being configured in such a way that the radiation pattern of said antennas is oriented radially with respect to said centre O, said acquisition occurring at points of acquisition si arranged on said trajectory ?, obtaining a plurality of data for each point of acquisition si; defining a plurality of target points ti of said scenario, the three-dimensional position of each target point ti being definable by means of spherical coordinates (?i,?i,?i

Abstract: The invention relates to a method and to an apparatus for determining a displacement vector field of a scenario, by a ground-based interferometric radar system operated in multi-bistatic mode and comprising a main radar transceiver device and at least one passive radar receiver device arranged at a predetermined distance from each other, in which the oscillators of the at least two radar are synchronized, in time and in frequency, in particular according to a signal coming from a global positioning system. The method provides a step of interferometrically determining at least one first displacement map and one second displacement map of the scenario between a previous time and a subsequent time, expressed in a global reference system and having each a plurality of pixels each associated to a respective domain of the scenario.

Abstract: The invention relates to a method and to an apparatus for determining a displacement vector field of a scenario, by a ground-based interferometric radar system operated in multi-bistatic mode and comprising a main radar transceiver device and at least one passive radar receiver device arranged at a predetermined distance from each other, in which the oscillators of the at least two radar are synchronized, in time and in frequency, in particular according to a signal coming from a global positioning system. The method provides a step of interferometrically determining at least one first displacement map and one second displacement map of the scenario between a previous time and a subsequent time, expressed in a global reference system and having each a plurality of pixels each associated to a respective domain of the scenario.