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A Novel High-Resolution Propagation Measurement Scheme for Indoor Terrestrial TV Signal Reception Based on Two-Dimensional Virtual Array Technique
Kazuo MOROKUMA Atsushi TAKEMOTO Yoshio KARASAWA
IEICE TRANSACTIONS on Communications
Publication Date: 2013/04/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Antennas and Propagation
indoor propagation, multipath propagation, direction finding, MUSIC algorithm, virtual array,
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We propose a novel propagation measurement scheme for terrestrial TV signal indoor reception based on a virtual array technique. The system proposed in this paper carries out two-branch recording of target signals and the reference signal. By using the signal phase reference in the reference signal, we clarify the spatial propagation characteristics obtained from the two-dimensional virtual array outputs. Outdoor measurements were performed first to investigate the validity of the proposed measurement system. The results confirm its effectiveness in accurately determining the direction-of-arrival (DOA). We then investigated the propagation characteristics in an indoor environment. The angular spectrum obtained showed clear wave propagation structure. Thus, our proposed system is promising as a very accurate measurement tool for indoor propagation analysis.