论文信息 - Wavelets and Wavelet Packets Applied to Termite Detection

Wavelets and Wavelet Packets Applied to Termite Detection

In this paper we present an study which shows the possibility of using wavelets and wavelet packets to detect transients produced by termites. Identification has been developed by means of analyzing the impulse response of three sensors undergoing natural excitations. De-noising exhibits good performance up to SNR=-30 dB, in the presence of white Gaussian noise. The test can be extended to similar vibratory or acoustic signals resulting from impulse responses.

Juan Manuel Górriz | Carlos García Puntonet | Juan José González de la Rosa | Isidro Lloret Galiana

[1] Ronald R. Coifman,et al. Entropy-based algorithms for best basis selection , 1992, IEEE Trans. Inf. Theory.

[2] S. Mallat. A wavelet tour of signal processing , 1998 .

[3] Allan Kardec Barros,et al. Independent Component Analysis and Blind Source Separation , 2007, Signal Processing.

[4] K. Loparo,et al. Bearing fault diagnosis based on wavelet transform and fuzzy inference , 2004 .

[5] Juan Manuel Górriz,et al. An Application of the Independent Component Analysis to Monitor Acoustic Emission Signals Generated by Termite Activity in Wood , 2004, ICINCO.

[6] Juan Manuel Górriz,et al. Higher-order statistics to detect and characterise termite emissions , 2004 .

[7] Juan Manuel Górriz,et al. An Application of ICA to Identify Vibratory Low-Level Signals Generated by Termites , 2004, ICA.

[8] R. Mankin,et al. Acoustic Detection of Termite Infestations in Urban Trees , 2002, Journal of economic entomology.

[9] M. D'Apuzzo,et al. A method for the automatic detection and measurement of transients. Part I: the measurement method , 1999 .

[10] R. K. Mueller,et al. Characteristics of acoustic emission signals generated by termite activity in wood , 1991, IEEE 1991 Ultrasonics Symposium,.