A Sonic Distance Measurement Approach Using Linear Frequency Modulated Signal

Ting Lan; Jian Jun Xie; Yang Bo Wu

doi:10.4028/www.scientific.net/AMM.427-429.2018

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 427-429A Sonic Distance Measurement Approach Using Linear...

A Sonic Distance Measurement Approach Using Linear Frequency Modulated Signal

Abstract:

This paper deals with the development of an alternative approach for sonic distance measurement. A linear frequency modulated signal (chirp signal) is regarded as a template signal. The sonic distance measurement system transmits the template signal and receives the echo signal, then calculate the correlation between template and echo signal. The time of flight is determined according to the position of the peak in the correlation result, then the distance is calculated. The major advantage of this approach is that it can detect weak echo signals among noises and increase measurement range significantly.

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Periodical:

Applied Mechanics and Materials (Volumes 427-429)

Pages:

2018-2021

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.427-429.2018

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Online since:

September 2013

Authors:

Ting Lan, Jian Jun Xie, Yang Bo Wu

Keywords:

Distance Measurement, Linear Frequency Modulated Signal, Sonic

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References

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