Non-crosstalk ultrasonic ranging system excited using chaotic sine frequency modulated sequences

Author

Song, Yu-Long ; Meng, Qing-Hao ; Zhang, Jiao-Jiao ; Zeng, Ming

Author_Institution

Sch. of Electr. Eng. & Autom., Tianjin Univ., Tianjin, China

fYear

2011

fDate

21-23 Oct. 2011

Firstpage

373

Lastpage

377

Abstract

Traditionally, most ultrasonic ranging systems are excited using pulse signals. A hardware platform of ultrasonic ranging system that is excited using a sine signal is presented. On the basis of the new hardware platform, the chaotic sine frequency modulation (CSFM) sequence is proposed to excite ultrasonic transducers. Correlation characteristics of the echo signals generated using the CSFM excitation sequences are analyzed, and the feasibility of using the CSFM sequence to eliminate ultrasonic crosstalk is validated. Preliminary experiments show that the proposed CSFM sequences could meet the requirement of non-crosstalk ultrasonic ranging systems.

Keywords

correlation methods; crosstalk; echo; frequency modulation; ultrasonic transducers; CSFM excitation sequence; chaotic sine frequency modulated sequence; correlation characteristics; echo signal; noncrosstalk ultrasonic ranging system; pulse signal; sine signal; ultrasonic crosstalk; ultrasonic transducer; Acoustics; Chaos; Correlation; Distance measurement; Frequency modulation; Sonar; Transducers; chaotic sine frequency modulation; correlation characteristics; ultrasonic crosstalk; ultrasonic ranging system;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Analysis and Signal Processing (IASP), 2011 International Conference on

Conference_Location

Hubei

Print_ISBN

978-1-61284-879-2

Type

conf

DOI

10.1109/IASP.2011.6109066

Filename

6109066