Digital burst frequency translator
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United States of America Patent
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Sep 26, 1995
Grant Date -
N/A
app pub date -
Apr 11, 1994
filing date -
Apr 11, 1994
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for detecting and measuring analog coherent frequency bursts includes circuitry for digitally translating the bursts upon their detection. Based on a frequency range estimate, a sampling frequency is selected to govern conversion of the analog burst to a sequence of digital values, which are stored to a sequential memory. The digital values later are read out of the memory to a digital-to-analog converter at a predetermined read frequency. The D/A converter output is low-pass filtered to provide a reconstructed analog burst. Sampling rates are selected to limit the frequency range of reconstructed bursts to a single octave, which enables subsequent signal processing with simpler circuitry, for reduced cost and improved accuracy and reliability of measurements obtained.
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