Title:
METHOD FOR PROCESSING OF OFFSET MEASURED VERSINE AND OTHER OFFSET MEASUREMENT DATA, AND SYSTEM FOR EXECUTING SAID METHOD
Document Type and Number:
WIPO Patent Application WO/2017/051677
Kind Code:
A1
Abstract:
The purpose of the present invention is to process offset measurement data with a simple calculation. Provided is a measurement data standing wave component extraction method which extracts a standing wave component from measurement data. The measurement data is data of n elements which are measured in prescribed space or time intervals, and expressed with an n-dimensional vector x. The method comprises a matrix computation step of computing an n-dimensional eigenspace matrix Si (where i is an integer greater than or equal to 1 and less than or equal to n), and an extraction step of computing the product of the eigenspace matrix Si and the vector x and extracting from the measurement data the ith longest standing wave component Six. In the matrix computation step, Si,(j,k), the (i,k) component of the eigenspace matrix Si, is computed with the following formula: Si,(j,k) = (2/(n+1)) × sin(iπj/(n+1)) × sin(iπk/(n+1))
Inventors:
EHARA GAKU (JP)
YATABE SHUNSUKE (JP)
FUJITA YOSHIHIRO (JP)
KASHIMA TAKAHIRO (JP)
YATABE SHUNSUKE (JP)
FUJITA YOSHIHIRO (JP)
KASHIMA TAKAHIRO (JP)
Application Number:
PCT/JP2016/075556
Publication Date:
March 30, 2017
Filing Date:
August 31, 2016
Export Citation:
Assignee:
WEST JAPAN RAILWAY COMPANY (JP)
RAILTECH CO LTD (JP)
KANEKO CORP (JP)
RAILTECH CO LTD (JP)
KANEKO CORP (JP)
International Classes:
G06F17/10; E01B35/02; G01B21/00
Foreign References:
| JP2014109088A | 2014-06-12 | |||
| JP2011252745A | 2011-12-15 |
Attorney, Agent or Firm:
NOGUCHI, Yasuhiro (JP)
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