Presentation 1999/6/9
The parameter estimation for the transfer function on analogue system with trapezoidal rule
Dai TANAKA, Nobuhiro MIKI,
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Abstract(in English) Many algorithms for formant estimation from speech signals are based on the Z transform expresion. However there is a problem; in the transfer function based on this, the value of coefficient of the polynomial is depend on the sampling frequency though the coefficient is invariant in the continuous signal space. It is known that the δtransform can be used for the approximation of the continuous space, but it is very difficult to solve numerically the estimation equation with the ill-condition, and is very high sensitivity for the observation noise. In this paper we propose a new algorithm with a modification of the estimation wquation, and show that our algorithm is useful to solve the above problem.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) trapezoidal rule / ill-condition problem / vocal transfer function / least square method
Paper # CAS99-6
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Committee CAS
Conference Date 1999/6/9(1days)
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Registration To Circuits and Systems (CAS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) The parameter estimation for the transfer function on analogue system with trapezoidal rule
Sub Title (in English)
Keyword(1) trapezoidal rule
Keyword(2) ill-condition problem
Keyword(3) vocal transfer function
Keyword(4) least square method
1st Author's Name Dai TANAKA
1st Author's Affiliation Graduate school of Engineering Hokkaido University()
2nd Author's Name Nobuhiro MIKI
2nd Author's Affiliation Graduate school of Engineering Hokkaido University
Date 1999/6/9
Paper # CAS99-6
Volume (vol) vol.99
Number (no) 103
Page pp.pp.-
#Pages 8
Date of Issue