Adaptive Peak Frequency Estimation Using a Database of PARCOR Coefficients

: This paper presents an adaptive peak frequency estimation method using a database that stores PARCOR coefficients as key attributes and the corresponding peak frequencies as nonkey attributes. The least-square lattice algorithm is used to recursively estimate the PARCOR coefficients to adapt to ch...

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Bibliographic Details
Published inEURASIP journal on advances in signal processing Vol. 2005; no. 7; p. 219856
Main Authors Watanabe, Tetsuya, Iiguni, Youji
Format Journal Article
LanguageEnglish
Published BioMed Central Ltd 22.05.2005
SpringerOpen
Subjects
adaptive estimation
AR spectrum
database retrieval
PARCOR coefficient
peak frequency
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Summary:: This paper presents an adaptive peak frequency estimation method using a database that stores PARCOR coefficients as key attributes and the corresponding peak frequencies as nonkey attributes. The least-square lattice algorithm is used to recursively estimate the PARCOR coefficients to adapt to changing circumstances. The nearest neighbor to the current PARCOR coefficient is retrieved from the database, and the corresponding peak frequency is regarded as the estimation. A simultaneous execution of database construction and peak estimation with database update is performed to accelerate the processing time and to improve the estimation accuracy.
ISSN:1687-6180
1687-6172
1687-6180
DOI:10.1186/1687-6180-2005-219856