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Abstract:
A modular analogue neuro-chip set with on-chip learning
capability is developed for active noise canceling. The analogue
neuro-chip set incorporates the error backpropagation learning rule
for practical applications, and allows pin-to-pin interconnections
for multi-chip boards. The developed neuro-board demonstrated
active noise canceling without any digital signal processor.
Multi-path fading of acoustic channels, random noise, and nonlinear
distortion of the loud speaker are compensated by the adaptive
learning circuits of the neuro-chips. Experimental results are
reported for cancellation of car noises in real time.
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