Multichannel frequency translation of sampled waveforms by decimation and interpolation
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United States of America Patent
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Feb 16, 1982
Grant Date -
N/A
app pub date -
Nov 23, 1979
filing date -
Nov 23, 1979
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system and method for frequency division demultiplexing a received broad band signal into k.sup.m channels, each capable of containing a baseband signal component and comprising m descending tiers of identical channel division modules with the first tier thereof comprising a first module responsive to the received broad band signal to divide such broad band signal (at baseband) into k new channels each containing a baseband spectral component. Each module of each tier of modules is constructed to respond individually (by sampling and de-sampling techniques) to the spectral component in individual ones of the channels outputted from the immediately preceding higher order tier of modules to form k new additional channels each containing a baseband spectral component. Each baseband spectral component has an upper bandwidth limit which bears the same ratio to its sampling rate as the upper bandwidth limit of the originally received broad band signal bears to its sampling rate.
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