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Title:
CALCULATION METHOD AND DEVICE OF RELATIVE AZIMUTH ANGLE, AND RELATIVE POSITION SPECIFYING METHOD
Document Type and Number:
Japanese Patent JP2016156809
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a relative azimuth angle calculation method and device and a relative position specifying method.SOLUTION: A relative azimuth angle calculation method acquires inertia sensor data of a first mobile terminal and a second mobile terminal, and includes: the capability of transmitting a first signal to the second mobile terminal by the first mobile terminal; the acquisition of the transmission frequency having a first signal when the first signal is transmitted to the second mobile terminal by the first mobile terminal; the acquisition of the reception frequency having the first signal when the first signal is received from the first mobile terminal by the second mobile terminal; the reception of the influence of the Doppler Effect in the course of the transmission of the first signal from the first mobile terminal to the second mobile terminal; and the calculation of a relative azimuth angle between the first mobile terminal and the second mobile terminal by the inertia sensor data, the transmission frequency, and the reception frequency. The relative azimuth angle calculation method can directly calculate a relative azimuth angle between mobile facilities using the Doppler Effect without requiring any initial condition.SELECTED DRAWING: Figure 2

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Inventors:
LIAO KE
BIN DA
WANG WEI
YU HAIHUA
YI HONG
Application Number:
JP2016021159A
Publication Date:
September 01, 2016
Filing Date:
February 05, 2016
Export Citation:
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Assignee:
RICOH CO LTD
International Classes:
G01S3/14; G01S5/12; G01S11/06
Domestic Patent References:
JPH04198787A1992-07-20
JP2015014504A2015-01-22
JP2012042244A2012-03-01
JP2001147262A2001-05-29
JP2012509652A2012-04-19
JP2007127584A2007-05-24
JP2014153113A2014-08-25
JPH08179029A1996-07-12
Foreign References:
US20130102324A12013-04-25
US20120086606A12012-04-12
US8063825B12011-11-22
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito



 
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