Title:
APPARATUS AND METHOD FOR ANALYZING FORECASTING PARAMETER
Document Type and Number:
Japanese Patent JP3859462
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an apparatus and a method for analyzing a forecasting parameter with high analysis performance by which the interfusion of an unnecessary component can be suppressed to the minimum.
SOLUTION: The apparatus, for analyzing the forecasting parameter provided with a forecasting parameter calculation part 15 for obtaining the forecasting parameter on the basis of the autocorrelation coefficient of an input signal, is further provided with a window-applying means 11 to obtain a short-time input signal x(n) by applying a window to an input signal or a signal resulting from the input signal, an unnecessary component removing part 13 to output a corrected short-time input signal y(n) by removing unnecessary components produced by the applied window from the short-time input signal x(n), and an autocorrelation calculation part 14 to obtain an autocorrelation coefficient on the basis of the corrected short-time input signal y(n).
Inventors:
Kimio Miseki
Application Number:
JP2001149564A
Publication Date:
December 20, 2006
Filing Date:
May 18, 2001
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
H03M7/36; G10L21/0208; G10L25/00; G10L25/06; G10L25/12; G10L25/45; H04B14/06; (IPC1-7): G10L11/00; G10L21/02; H03M7/36; H04B14/06
Domestic Patent References:
| JP10254473A | ||||
| JP1010230A | ||||
| JP7325583A | ||||
| JP563580A | ||||
| JP2000330593A | ||||
| JP8509306A |
Attorney, Agent or Firm:
Hiroshi Horiguchi