SAPPHIRE: A novel building mapping radar

Through-the-wall radar is available for single walls, providing range, direction, and motion information of moving subjects, often requiring a close position to the wall. No proven technology exists yet that allows mapping of building structures in a covert way. At TNO an innovative concept to synthesize a 3D map of a building with a stand-off, through-the-wall radar is being developed: SAPPHIRE.