Multichannel transmitter and receiver
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United States of America Patent
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Apr 8, 2014
Issued Date -
N/A
app pub date -
Mar 23, 2012
filing date -
Jul 13, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A circuit and method is provided for determining the frequency of a signal of interest in a wideband composite RF signal. An analog preprocessor is configured to receive a composite RF signal from an antenna and produce bandlimited frequency sub-bands S1 to Sn. An image converter is configured to receive and alias the bandlimited frequency sub-bands S1 to Sn to baseband and generate a first alias-band output signal and a second alias-band output signal. A processor is configured to receive the two alias-band output signals and determine the frequency shift of the signal of interest between the two alias-band output signals and calculate the frequency for the signal of interest using the frequency shift.
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