1.8 GHz indoor measurement DOA extraction with the SAGE algorithm
Jo Verhaevert, Emmanuel H. Van Lil, Sven Semmelrodt, R. Kattenbach, Antoine Van de Capelle · Ghent University Academic Bibliography (Ghent University) · 2003
In this paper, the channel measurement done with the system from the University of Kassel will be investigated. Very high bandwidth 600 MHz RF channels at 1.8 GHz will be measured with a moving antenna, forming a synthetic aperture. Afterwards, the transformation from the transfer function in the frequency-domain to the time-domain received signal, with the training sequence included, will be explained. On these received data, the Space Alternating Generalised Expectation maximisation (SAGE) Algorithm will be applied to extract with high resolution the Direction of Arrival (DOA) parameters, in this case the time delay, the azimuth angle and the complex amplitude for every significant path. The extraction results will be evaluated and visually interpreted.