An analogue bandpass filter realisation of the Continuous Wavelet Transform

Alexander J Casson; David C Yates; Shyam Patel; Esther Rodriguez-Villegas

doi:10.1109/IEMBS.2007.4352675

An analogue bandpass filter realisation of the Continuous Wavelet Transform

Annu Int Conf IEEE Eng Med Biol Soc. 2007:2007:1850-4. doi: 10.1109/IEMBS.2007.4352675.

Authors

Alexander J Casson¹, David C Yates, Shyam Patel, Esther Rodriguez-Villegas

Affiliation

¹ Electrical and Electronic Engineering Department, Imperial College London, UK. alexander.casson06@imperial.ac.uk

PMID: 18002341
DOI: 10.1109/IEMBS.2007.4352675

Abstract

The Continuous Wavelet Transform (CWT) is a highly useful signal processing technique for which low power implementations are desirable, for example to allow the transform to be used in battery powered, portable devices. This paper describes a Low Power CWT (LPCWT) implementation that is based around the mathematical approximation of a mother wavelet and uses application specific information to guide the approximation process. Simulations comparing the LPCWT and CWT are carried out with the two giving equivalent signal processing performance. The LPCWT is suitable for realisation in any desired circuit topology.

MeSH terms

Algorithms
Computer Simulation
Computers
Diagnosis, Computer-Assisted
Electric Power Supplies
Electronics, Medical / instrumentation*
Electronics, Medical / methods
Epilepsy / diagnosis*
Epilepsy / pathology
Equipment Design
Humans
Models, Statistical
Models, Theoretical
Sensitivity and Specificity
Signal Processing, Computer-Assisted*
Software
Time Factors