Cerutti-Maori, DelphineDelphineCerutti-MaoriRosebrock, JensJensRosebrockMaouloud, I.O.I.O.MaouloudLeushacke, LudgerLudgerLeushackeKrag, HolgerHolgerKrag2022-03-132022-03-132017https://publica.fraunhofer.de/handle/publica/397614Presently, there exists very little knowledge about the density and distribution of space debris of the size of a few millimeters. The reason is that ground-based systems are not sensitive enough to detect such small objects. Space-based radars have the potential through in situ measurements to validate or discard the current space debris models and to help filling this knowledge gap. This paper presents a preliminary design of a space-based radar for detecting mm-size space debris and discusses the potentials and limitations of such a concept.en621conference paper