Acoustic Travel-Time Estimation by Fast Correlation Combined with Up-Sampling

Author

Yan, Hua ; Xu, Ying ; Cui, Kexin ; Liu, Lijun ; Xu, Shaobo

Author_Institution

Sch. of Inf. Sci. & Eng., Sheyang Univ. of Technol., Shenyang

fYear

2008

fDate

1-3 Nov. 2008

Firstpage

629

Lastpage

632

Abstract

The key for acoustic temperature field measurement is to measure acoustic travel-time accurately. Restricted by sample interval, the acoustic travel-time estimation accuracy by fast correlating of the transmitted and the received signals is not high enough. A new method based on fast correlation combined with up-sampling is proposed. Ideal anti-imaging filters are implemented in frequency domain. Simulation research in MATLAB shows that it has much higher estimation accuracy compared with the fast correlation method. The larger the up-sampling factor, the higher the accuracy will be.

Keywords

acoustic signal processing; correlation methods; frequency-domain analysis; acoustic temperature field measurement; acoustic travel time; acoustic travel-time estimation; antiimaging filters; fast correlation; frequency domain; Acoustic measurements; Acoustical engineering; Filters; Information science; Intelligent networks; Intelligent systems; Sampling methods; Temperature measurement; Temperature sensors; Tomography; acoustic temperature measurement; fast correlation; ideal anti-imaging filter; travel-time estimation; up-sampling;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Networks and Intelligent Systems, 2008. ICINIS '08. First International Conference on

Conference_Location

Wuhan

Print_ISBN

978-0-7695-3391-9

Electronic_ISBN

978-0-7695-3391-9

Type

conf

DOI

10.1109/ICINIS.2008.83

Filename

4683305