Title :
A Scalable Architecture for Event-Based Cross-Correlation
Author :
Tapson, J. ; Jin, C. ; van Schaik, A.
Author_Institution :
Cape Town Univ., Cape Town
Abstract :
We present an architecture for a bio-inspired circuit that implements a wide-range cross-correlation. The circuit implements a stochastic approximation to mathematical cross-correlation. The basic circuit element is a noise-driven oscillator consisting of an integrator, a Schmitt inverter, and a switch which switches between the two signals to be cross-correlated. These elements can be developed into an NxN array which extends the cross-correlation range and improves the speed and accuracy of the approximation.
Keywords :
correlation methods; stochastic processes; NxN array; Schmitt inverter; bio-inspired circuit; event-based cross-correlation; integrator; noise-driven oscillator; scalable architecture; stochastic approximation; switch; Additive noise; Autocorrelation; Circuit noise; Delay; Detectors; Inverters; Oscillators; Stochastic processes; Switches; Switching circuits; Cross-correlation; parallel correlation; stochastic processing;
Conference_Titel :
Biomedical Circuits and Systems Conference, 2007. BIOCAS 2007. IEEE
Conference_Location :
Montreal, Que.
Print_ISBN :
978-1-4244-1524-3
Electronic_ISBN :
978-1-4244-1525-0
DOI :
10.1109/BIOCAS.2007.4463314
