Transients in circular symmetry; estimation of transverse wave propagation velocity

Joakim Axmon; Maria Sandsten

doi:10.1109/SAM.2000.878000

Transients in circular symmetry; estimation of transverse wave propagation velocity

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

Abstract

The response of a tree trunk to a hammer blow, measured by sensors positioned around the excited cross section, consists of two kinds of transient mechanical waves: longitudinal P- and transverse S-waves. The aim of this paper is to extract the velocity of the S-waves, using a filtering structure that emphasizes the waves heading in one of the directions along the circumference. By this approach, a more robust estimate of the delay between the channels, compared to, e.g., using the pure discrete Radon transform, is obtained. The method is applied to recordings of a large number of trees, and estimated velocities are reported.

Original language	English
Title of host publication	Proceedings of the 2000 IEEE Sensor Array and Multichannel Signal Processing Workshop. SAM 2000
Publisher	IEEE - Institute of Electrical and Electronics Engineers Inc.
Pages	212-216
ISBN (Print)	0-7803-6339-6
DOIs	https://doi.org/10.1109/SAM.2000.878000
Publication status	Published - 2000
Event	2000 IEEE Sensor Array and Multichannel Signal Processing Workshop - Cambridge, MA, United States Duration: 2000 Mar 17 → 2000 Mar 17

Workshop

Workshop	2000 IEEE Sensor Array and Multichannel Signal Processing Workshop
Country/Territory	United States
City	Cambridge, MA
Period	2000/03/17 → 2000/03/17

Subject classification (UKÄ)

Signal Processing

Access to Document

10.1109/SAM.2000.878000

Cite this

@inproceedings{26e74c07a4b44b38b9413f08f2433f0c,

title = "Transients in circular symmetry; estimation of transverse wave propagation velocity",

abstract = "The response of a tree trunk to a hammer blow, measured by sensors positioned around the excited cross section, consists of two kinds of transient mechanical waves: longitudinal P- and transverse S-waves. The aim of this paper is to extract the velocity of the S-waves, using a filtering structure that emphasizes the waves heading in one of the directions along the circumference. By this approach, a more robust estimate of the delay between the channels, compared to, e.g., using the pure discrete Radon transform, is obtained. The method is applied to recordings of a large number of trees, and estimated velocities are reported.",

author = "Joakim Axmon and Maria Sandsten",

year = "2000",

doi = "10.1109/SAM.2000.878000",

language = "English",

isbn = "0-7803-6339-6",

pages = "212--216",

booktitle = "Proceedings of the 2000 IEEE Sensor Array and Multichannel Signal Processing Workshop. SAM 2000",

publisher = "IEEE - Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "2000 IEEE Sensor Array and Multichannel Signal Processing Workshop ; Conference date: 17-03-2000 Through 17-03-2000",

}

Axmon, J & Sandsten, M 2000, Transients in circular symmetry; estimation of transverse wave propagation velocity. in Proceedings of the 2000 IEEE Sensor Array and Multichannel Signal Processing Workshop. SAM 2000. IEEE - Institute of Electrical and Electronics Engineers Inc., pp. 212-216, 2000 IEEE Sensor Array and Multichannel Signal Processing Workshop, Cambridge, MA, United States, 2000/03/17. https://doi.org/10.1109/SAM.2000.878000

Transients in circular symmetry; estimation of transverse wave propagation velocity. / Axmon, Joakim; Sandsten, Maria.
Proceedings of the 2000 IEEE Sensor Array and Multichannel Signal Processing Workshop. SAM 2000. IEEE - Institute of Electrical and Electronics Engineers Inc., 2000. p. 212-216.

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - Transients in circular symmetry; estimation of transverse wave propagation velocity

AU - Axmon, Joakim

AU - Sandsten, Maria

PY - 2000

Y1 - 2000

N2 - The response of a tree trunk to a hammer blow, measured by sensors positioned around the excited cross section, consists of two kinds of transient mechanical waves: longitudinal P- and transverse S-waves. The aim of this paper is to extract the velocity of the S-waves, using a filtering structure that emphasizes the waves heading in one of the directions along the circumference. By this approach, a more robust estimate of the delay between the channels, compared to, e.g., using the pure discrete Radon transform, is obtained. The method is applied to recordings of a large number of trees, and estimated velocities are reported.

AB - The response of a tree trunk to a hammer blow, measured by sensors positioned around the excited cross section, consists of two kinds of transient mechanical waves: longitudinal P- and transverse S-waves. The aim of this paper is to extract the velocity of the S-waves, using a filtering structure that emphasizes the waves heading in one of the directions along the circumference. By this approach, a more robust estimate of the delay between the channels, compared to, e.g., using the pure discrete Radon transform, is obtained. The method is applied to recordings of a large number of trees, and estimated velocities are reported.

U2 - 10.1109/SAM.2000.878000

DO - 10.1109/SAM.2000.878000

M3 - Paper in conference proceeding

SN - 0-7803-6339-6

SP - 212

EP - 216

BT - Proceedings of the 2000 IEEE Sensor Array and Multichannel Signal Processing Workshop. SAM 2000

PB - IEEE - Institute of Electrical and Electronics Engineers Inc.

T2 - 2000 IEEE Sensor Array and Multichannel Signal Processing Workshop

Y2 - 17 March 2000 through 17 March 2000

ER -

Transients in circular symmetry; estimation of transverse wave propagation velocity

Abstract

Workshop

Subject classification (UKÄ)

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Cite this