METHOD AND APPARATUS FOR DETERMINING THE RELATIVE PERMITTIVITY OF A MATERIAL USING A GROUND PENETRATING RADAR

• Main Authors: MAKHOUL, Gloria, D'ERRICO, Raffaele
• Format: Patent
• Language: English; French; German
• Published: 29.05.2024
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETECTING MASSES OR OBJECTS; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

L'invention concerne une nouvelle méthode permettant d'estimer précisément les permittivités relatives et les épaisseurs de chaque couche d'un matériau tel que le sol. La méthode est basée sur des acquisitions de mesures réalisées par un radar à pénétration de sol muni de plusieurs antennes en émission et plusieurs antennes en réception (radar MIMO « Multiple Input Multiple Output »). La méthode proposée se base sur un algorithme particulier qui vise à estimer les couples (retard, permittivité relative) les plus probables qui correspondent aux différentes couches composant la structure du sol. A new method for accurately estimating the relative permittivities and the thicknesses of each layer of a material such as the ground is provided. The method is based on acquisitions of measurements taken by a ground-penetrating radar provided with a plurality of transmitting antennas and a plurality of receiving antennas (multiple input multiple output or MIMO radar). The proposed method is based on a particular algorithm that aims to estimate the most probable (delay, relative permittivity) pairs that correspond to the different layers making up the structure of the ground.