Title:
NOISE SEPARATOR, NOISE SEPARATING METHOD, PROBABILITY DENSITY FUNCTION SEPARATOR, PROBABILITY DENSITY FUNCTION SEPARATING METHOD, TESTER, ELECTRONIC DEVICE, PROGRAM, AND RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2008/018587
Kind Code:
A1
Abstract:
A noise separator for separating the probability density function of a predetermined noise
component from the probability density function of a signal to be measured comprises
a domain converting section for converting the probability density function
into the spectrum of a frequency domain when the probability density function
of the signal to be measured is given and a standard deviation calculating section
for calculating the standard deviation of a random component of the noise contained
in the signal to be measured according to the level of a predetermined frequency
component in the main lobe of the spectrum
Inventors:
YAMAGUCHI TAKAHIRO (JP)
HOU HARRY (US)
HOU HARRY (US)
Application Number:
PCT/JP2007/065718
Publication Date:
February 14, 2008
Filing Date:
August 10, 2007
Export Citation:
Assignee:
ADVANTEST CORP (JP)
YAMAGUCHI TAKAHIRO (JP)
HOU HARRY (US)
YAMAGUCHI TAKAHIRO (JP)
HOU HARRY (US)
International Classes:
G01R23/16; G01R29/02; G01R29/26
Foreign References:
| JP2003057280A | 2003-02-26 | |||
| JP2005513841A | 2005-05-12 | |||
| JP2002502041A | 2002-01-22 |
Attorney, Agent or Firm:
RYUKA, Akihiro (22-1 Nishi-Shinjuku 6-chom, Shinjuku-ku Tokyo 05, JP)
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