A Study of a Parametric Method for the Snow Reflection Coefficient Estimation Using Air-Coupled Ultrasonic Waves

Sensors

Krzysztof Opieliński¹  Tadeusz Gudra¹  Dariusz Banasiak²  Tomasz Budzik³  Nathalie Risso⁴  Krzysztof Herman⁴ 

[1] Department of Acoustics and Multimedia, Faculty of Electronics, Wroclaw University of Science and Technology, 50-370 Wroclaw, Poland;Department of Computer Engineering, Faculty of Electronics, Wroclaw University of Technology, 50-370 Wroclaw, Poland;Department of Earth Sciences, University of Silesia, 41-200 Sosnowiec, Poland;Department of Electrical and Electronics Engineering, University of the Bio Bio, Concepción 4081112, Chile;

关键词: air-coupled ultrasound;    snow parameters;    digital signal processing;   

DOI  :  10.3390/s20154267

来源: DOAJ

【 摘 要 】

In this paper, a method for estimating snow pressure reflection coefficient based on non-contact ultrasound examination is described. A constant frequency and air-coupled ultrasound pulses were used in this study, which incorporates a parametric method for reflected energy estimation. The experimental part was carried out in situ in the Antarctic, where the snow parameters were measured along with meteorological data. The proposed method represents a promising alternative for estimating the snow-water equivalent, since it uses a parametric approach, which does not require measurements of absolute values for acoustic pressure.

【 授权许可】

Unknown