In this paper a hybrid 2D-Measurement technique is utilized for the estimation of remote position of an active reflector unit (Tag), in terms of radial distance and azimuth angle. Technique is based on Interferometry and FMCW multistatic radar system which operates in the European UWB frequency band. Measurements have been performed in the real indoor environment for line-of-sight case with respect to a single known reference position. Estimated root-mean-square errors are under 1.58cm & 5.2 degrees, respectively. This new technique offers a wide range of application in robotics, industrial automation and medical domain.