On-time Extraction of Ultrasonic Waves Based on Wavelet Transform and AIC Criterion

Jie Chen; Min Wan

doi:10.54097/m1dqja74

Authors

Jie Chen
Min Wan

DOI:

https://doi.org/10.54097/m1dqja74

Keywords:

Wavelet transform; AIC; Ultrasonic waves.

Abstract

Acoustic instruments have become the mainstream technology for downhole parameter measurement due to their non-contact and high-precision characteristics, but due to the high-noise environment in the downhole, the accuracy of echo signal extraction has always been low. In this paper, we propose an echo signal processing method using wavelet transform and AIC criterion, which can accurately extract the arrival time of echo signals with low signal-to-noise ratio and improve the accuracy of measurement instruments.

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