Recognition of insect emissions applying the discrete wavelet transform

Authors:
Carlos García Puntonet;Juan-José González de-la-Rosa;Isidro Lloret Galiana;Juan Manuel Górriz
Affiliations:
Department of Architecture and Computers Technology, ESII, University of Granada, Granada, Spain;Research Group TIC168 – Computational Electronics, Instrumentation and Physics Engineering, EPSA, University of Cádiz, Algeciras-Cádiz, Spain;Department of Architecture and Computers Technology, ESII, University of Granada, Granada, Spain;Department of Architecture and Computers Technology, ESII, University of Granada, Granada, Spain
Venue:
ICAPR'05 Proceedings of the Third international conference on Advances in Pattern Recognition - Volume Part I
Year:
2005

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Abstract

The time-domain fingerprint of termite alarm signals is enhanced by wavelets and wavelet packets, using multi-resolution analysis. We take advantage of these emission patterns, characterized by four-impulse bursts. 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.