NASA NTRS · 19770000022
Digital filter for voiceband noise
Abstract
Device operates over 300 to 3000 hertz range and contains 10 bit, 10 kilohertz converters and equally fast registers. Combination and weights of digital samples of analog signal are utilized by device to reconstruct signal with noise above 3000 hertz eliminated.
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Edwards, T. R., Zeanah, H. W.. 1977-06-01. Digital filter for voiceband noise. https://ntrs.nasa.gov/citations/19770000022
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