Modeling and simulation on accuracy of broad band acoustic Doppler current profiler

Author

Huang Xiong-fei ; Bing-cheng Yuan

Author_Institution

Dept. of Weapon Eng., Naval Univ. of Eng., Wuhan

fYear

2008

fDate

10-12 Oct. 2008

Firstpage

1553

Lastpage

1556

Abstract

Broad band acoustic Doppler current profiler (BBADCP) adopt repeated binary coded pulse as itpsilas transmitted signal. According to the characteristic of signal spectrum, this kind of signal can be represented as the linear addition of multiple narrow band signals with different frequency. Using the Cramer-Rao bound of narrow band acoustic Doppler current profiler (NBADCP), the accuracy model of BBADCP is established and simulation is done. The reason that accuracy of BBADCP is higher than NBADCP is analyzed, and the conditions that accuracy of BBADCP is higher than NBADCP are discussed, at the same time, the relationship of measurement precision, signal-to-noise and the length of codes are analyzed. At last, some principles of selection of signal parameters are presented.

Keywords

Doppler shift; acoustic signal processing; binary codes; hydrological equipment; Cramer-Rao bound; binary coded pulse; broad band acoustic Doppler current profiler; multiple narrow band signals; narrow band acoustic Doppler current profiler; Acoustic measurements; Acoustic pulses; Cramer-Rao bounds; Doppler shift; Frequency; Length measurement; Narrowband; Signal analysis; Signal resolution; Weapons;

fLanguage

English

Publisher

ieee

Conference_Titel

System Simulation and Scientific Computing, 2008. ICSC 2008. Asia Simulation Conference - 7th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-1786-5

Electronic_ISBN

978-1-4244-1787-2

Type

conf

DOI

10.1109/ASC-ICSC.2008.4675623

Filename

4675623