Direction-resolved estimation of multipath parameters for UWB channels: A partially collapsed Gibbs sampler method

We propose a Monte Carlo method for determining the parameters of multipath components (MPCs) for ultra-wideband channels. A partially collapsed Gibbs sampler is used for jointly estimating the number, times-of-arrival, angles-of-arrival, and amplitudes of the MPCs as well as the sounding pulse from signals received by a 2D antenna array. Our system model accounts for propagation delays between the receive antennas. Temporal-angular sparsity of the detected MPCs is ensured by a 2D minimum distance constraint. Numerical results for synthetic and real signals demonstrate the excellent performance and fast convergence of our method.

• Type: Journal
• Year: 2011
• Where: ICASSP
• Authors: Georg Kail, Klaus Witrisal, Franz Hlawatsch
• Keywords: 2D Antenna Array, 2D Minimum Distance, ICASSP 2011, Monte Carlo Method, Signal Processing