Title:
ADAPTIVE SIGNAL PROCESSING METHOD AND DEVICE
Document Type and Number:
Japanese Patent JP2015082739
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To reduce calculation costs and prediction errors by accurately and quickly extracting a signal from data including noise.SOLUTION: An adaptive signal processing device includes: a time series data input unit; an arithmetic processing unit which generates approximate value data of entire time series data on the basis of respective gradient values of time series data values per prescribed time interval, a data storage unit in which the approximate value data and the gradient values and average values in respective prescribed time intervals are stored in association with preliminarily stored model functions; a model application unit which applies model parameters corresponding to the gradient values and average values in respective time intervals to generate application data relating to respective model functions; a model selection unit which selects a model function most matching the time series data; and a data prediction unit which applies the selected model function to the time series data to predict data variation.
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Inventors:
SAKAINO HIDETOMO
NAKAMURA RYOTA
NAKAMURA RYOTA
Application Number:
JP2013219513A
Publication Date:
April 27, 2015
Filing Date:
October 22, 2013
Export Citation:
Assignee:
NIPPON TELEGRAPH & TELEPHONE
International Classes:
H03H21/00; G01D3/028; G05B13/02
Domestic Patent References:
| JP2013178230A | 2013-09-09 | |||
| JPH03163905A | 1991-07-15 | |||
| JPH07210175A | 1995-08-11 | |||
| JPH0228705A | 1990-01-30 | |||
| JPH07268356A | 1995-10-17 |
Attorney, Agent or Firm:
Patent Business Corporation Tani/Abe Patent Office