Evaluation of Materials and Structures with a Multistatic Ultra-Wideband Impulse Radar: A Concept Validation. - Gaigals, Gatis; Maliks, Romans; Aristov, Vladimir; Savelis, Rolands; Simanovics, Janis; Lobanovs, Eduards; Egliens, Haralds; Laksis, Dans; Greitans, Kristaps Maris; Greitans, Modris (Applied Sciences (2076-3417), 2023)