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Title:
PROPAGATION TIME MEASURING DEVICE
Document Type and Number:
Japanese Patent JP2014159685
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a propagation time measuring device capable of simplifying a device configuration.SOLUTION: Oscillators 4n(n=1 to K) output complex signals f(p) to f(p) before combining to correlation operation parts 36n(n=1 to K), respectively. When the correlation operation parts 36n(n=1 to K) receive a radio wave (complex signal F(p-2Δt)) sent back from a terminal 2, they calculate correlation for each of the complex signal f(p) to f(p) and output correlation values c(p) to c(p) as correlation results thereof. Then they measure a propagation time required for sending-receiving the radio wave between a base station 1 and the terminal 2 by using the correlation values c(p) to c(p).

Inventors:
KOGA KENICHI
Application Number:
JP2013030094A
Publication Date:
September 04, 2014
Filing Date:
February 19, 2013
Export Citation:
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Assignee:
TOKAI RIKA CO LTD
International Classes:
E05B49/00
Foreign References:
WO2006095463A12006-09-14
Attorney, Agent or Firm:
Hironori Onda
Makoto Onda



 
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