Analog correlator based on one bit digital correlator
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United States of America Patent
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May 23, 2017
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app pub date -
Dec 2, 2013
filing date -
Nov 30, 2012
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Abstract
A two input time domain correlator may perform analog correlation. In order to achieve high throughput rates with reduced or minimal computational overhead, the input data streams may be hard limited through adaptive thresholding to yield two binary bit streams. Correlation may be achieved through the use of a Hamming distance calculation, where the distance between the two bit streams approximates the time delay that separates them. The resulting Hamming distance approximates the correlation time delay with high accuracy.
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