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High-Resolution Analysis of Indoor Multipath Propagation Structure
Yasutaka OGAWA Norihiro HAMAGUCHI Kohzoh OHSHIMA Kiyohiko ITOH
IEICE TRANSACTIONS on Communications
Publication Date: 1995/11/25
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Adaptive Signal Processing Technology in Antennas)
multipath propagation, Fourier transform, superresolution techniques, MUSIC algorithm,
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Analyzing multipath propagation structure is important to develop anti-fading techniques for high-speed digital radio systems. Several techniques have been employed to measure delay profiles and/or arrival angles. This paper presents a simultaneous estimation method of delay times and arrival angles of indoor multipath waves. We obtain frequency-domain data at different receiving antenna positions using a network analyzer. We estimate the propagation parameters by means of a two-dimensional MUSIC algorithm. In order to obtain reliable results, a two-dimensional discrete inverse Fourier transform and a gating technique are employed before the MUSIC algorithm. Simulation and experimental results show that the proposed method can estimate the propagation parameters properly.