Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DETECTION METHOD AND DETECTION PROGRAM
Document Type and Number:
WIPO Patent Application WO/2020/174635
Kind Code:
A1
Abstract:
On the basis of reception results of data received by a device (111) from five or more satellites at a first time point (t1), a solution is calculated for an equation that contains variables X, Y, Z representing a three-dimensional position of the device (111) and variables t, dt relating to time lags. In addition, a solution is calculated for an equation containing the variables X, Y, Z, t on the basis of reception results of data received by the device (111) from four satellites at a second time point (t2) and also on the basis of a solution to the variable dt calculated for the first time point (t1). Then, information on the position of the device (111) that is based on the respective solutions of the variables X, Y, Z calculated for the first time point (t1) and the second time point (t2) is outputted.

Inventors:
NAGATA JUN-ICHI (JP)
Application Number:
PCT/JP2019/007710
Publication Date:
September 03, 2020
Filing Date:
February 27, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUJITSU LTD (JP)
International Classes:
G01S19/34; G01S19/45
Foreign References:
JPH05333132A1993-12-17
JP2005326429A2005-11-24
JP2012524273A2012-10-11
JP2018109575A2018-07-12
JP2011141282A2011-07-21
US20170097422A12017-04-06
Other References:
RUGAMER, ALEXANDER AND RUBINO DANIEL; LUKCIN IVANA; TASCHKE SIMON; STAHL MANUEL; FELBER WOLFGANG: "Secure Position and Time Information by Server Side PRS Snapshot Processing", 16 September 2016 (2016-09-16), pages 3002 - 3017, XP056013881, ISSN: 2331-5911
Attorney, Agent or Firm:
SAKAI, Akinori (JP)
Download PDF: