Signal processing for velocity selective recording systems using analogue delay lines

Reference:

Rieger, R., Taylor, J. and Clarke, C., 2012. Signal processing for velocity selective recording systems using analogue delay lines. In: ISCAS 2012 - 2012 IEEE International Symposium on Circuits and Systems. IEEE, pp. 2195-2198.

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Official URL:

http://dx.doi.org/10.1109/ISCAS.2012.6271725

Abstract

This paper describes improvements to the technique of velocity selective recording (VSR) in which multiple neural signals are matched and summed to identify excited axon populations in terms of velocity. The signals are acquired using a multi-electrode cuff (MEC) which is now available as a component for use in implantable neuroprostheses. The improvements outlined in the paper involve the replacement of the digital signal processing stages of a standard delay-matched VSR system with analogue delay lines which promise significant savings in both size and power consumption. These are crucial metrics for an implanted device. Preliminary simulations are provided.

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