Study on the acoustic wave flying time measurement method based on the second related technology

Author

Tian, Feng ; Zhang, Changhui ; Liu, Song ; Bian, Tingting ; Zhang, Weijun

Author_Institution

Coll. of Comput. Sci., Shenyang Inst. of Aeronaut. Eng., Shenyang, China

fYear

2009

fDate

16-19 Aug. 2009

Firstpage

30317

Lastpage

31413

Abstract

Accurate measurement of the acoustic wave flying time in furnace is the key of acoustic measurement technology of furnace temperature distribution. This paper proposes the acoustic wave flying time measurement method based on the second related technologies. First, the received signal is dealt with autocorrelation process, and then it is dealt by cross-correlation with reference signal, which realizes the reconstruction of useful signal in the noise signal. Finally, time-delay estimation is done based on the reconstruction signal. The simulation result shows that compared with generalized cross-correlation method, this method shows stronger anti-noise capability and higher measurement accuracy.

Keywords

acoustic correlation; acoustic measurement; delay estimation; furnaces; signal reconstruction; temperature distribution; temperature measurement; acoustic measurement technology; acoustic thermometry; acoustic wave flying time measurement; cross correlation method; furnace temperature distribution; noise signal; second related technology; signal reconstruction; time-delay estimation; time-of-flight measurement; Acoustic measurements; Acoustic noise; Acoustic waves; Background noise; Delay effects; Delay estimation; Furnaces; Noise measurement; Signal processing; Time measurement; acoustic thermometry; acoustic time of flight; cross correlation method; second related technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Measurement & Instruments, 2009. ICEMI '09. 9th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3863-1

Electronic_ISBN

978-1-4244-3864-8

Type

conf

DOI

10.1109/ICEMI.2009.5274111

Filename

5274111