Ka band measurements over urban area, a study of NLOS back-scattering

To support studies on urban SAR imaging and Non Line Of Sight (NLOS) phenomenon mitigation at Ka band, a measurement campaign has been performed, involving the ONERA BUSARD motor glider equipped with the DRIVE radar. One validation flight and six measurements flights have been done, leading to the acquisition of a large radar dataset. First results highlight some NLOS radar echoes and measured distances from wall direct echo to NLOS observations correspond to theoretical evaluations.