Simplified Multipath Propagation Measurement Scheme for DOA and Delay Based on Virtual Array Technique

Phavanhna PHOMMASACK  Yoshio KARASAWA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E98-B   No.5   pp.814-823
Publication Date: 2015/05/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E98.B.814
Type of Manuscript: Special Section PAPER (Special Section on Recent Progress in Radio Propagation)
Category: 
Keyword: 
propagation measurement,  virtual array,  DOA,  delay,  

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Summary: 
The present paper proposes a method for simultaneously estimating the direction of arrival (DOA) and delay of multipath signals through the virtual array reception of broadband signals. In order to confirm the principles behind the proposed method, a broadband signal of 42MHz, equivalent to seven adjacent TV channels being transmitted from the Tokyo Skytree, was acquired and stored in a personal computer as the reception signal, which acts as reference signal. In addition, a multipath signal with DOA and delay was generated using a personal computer. Signal processing revealed that DOA and delay could be identified correctly. Finally, a multipath propagation analysis is conducted for an actual outdoor propagation environment as a demonstration of the proposed method.