IIIE 20352
INSTITUTO DE INVESTIGACIONES EN INGENIERIA ELECTRICA "ALFREDO DESAGES"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Low power switched capacitor implementation of discrete Haar wavelet transform
Autor/es:
A. CHACON RODRIGUEZ, P. JULIAN; M. STANACEVIC, L. SHUO; L. RIVAS
Reunión:
Congreso; IEEE Latin American Symposium on Circuits and Systems, LASCAS; 2012
Institución organizadora:
INAOE
Resumen:
A low power switched capacitor filter implementation
of a Haar discrete wavelet transform is presented. The circuit
is to be integrated into the pre-processing unit of an adaptive
threshold detection system for environmental protection applications.
For a 200Hz sinewave input signal with an amplitude of
200 mV, the simulation results demonstrate a systematic error
in computation of wavelet coefficients under ± 1.1 mV with a
power consumption of 40 μW. The switched-capacitor circuit is
implemented on a 0.5 μm CMOS technology.
