Proceedings Article10.1109/ISCAS.2007.378406
A Simple Neural Cross-Correlation Engine
Jonathan Tapson,Ralph Etienne-Cummings +1 more
- 27 May 2007
- pp 1285-1288
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TL;DR: The authors show that the system is capable of extracting the cross-correlation components, and therefore the range information, in the pseudorandom gold codes used to provide ranging signals in the global positioning system (GPS).
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Abstract: The paper presents an electronic circuit that produces a cross-correlation function for pairs of input signals, without explicitly performing a mathematical algorithm. The circuit uses noisy integrate-and-fire neurons to produce autocorrelation information. Cross-correlation terms are generated by summing a reference signal with the incoming unknown signal. The authors show that the system is capable of extracting the cross-correlation components, and therefore the range information, in the pseudorandom gold codes used to provide ranging signals in the global positioning system (GPS). The circuit is constructed using low power discrete analog electronics, and hence offers the potential for a reduction in GPS receiver power consumption.
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A neuromorphic cross-correlation chip
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- 15 May 2011
TL;DR: The design and measured results of an analogue integrated circuit (IC) that performs cross-correlations using a neuromorphic algorithm is presented.
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A two-neuron cross-correlation circuit with a wide and continuous range of time delay
Jonathan Tapson,M.P. Vismer,Craig Jin,A. van Schaik,Fopefolu Folowosele,Ralph Etienne-Cummings +5 more
- 18 May 2008
TL;DR: A circuit of two spiking neurons which extracts mathematically accurate cross-correlations from the signal inputs, and the output, in the form of a differential spike histogram, displays a mathematicalCross-correlation in the conventional correlation vs. time form.
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Autocorrelation properties of single neurons
J. Tapson
- 07 Sep 1998
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A duplex theory of pitch perception
TL;DR: Of the two methods, one--frequency analysis performed by an array of band-pass filters--has been incorporated into auditory theory, and the possibility that the other method, autocorrelationaI analysis, plays a role in the auditory process has been neglected.