Error corrector for radar timing systems
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United States of America Patent
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Nov 4, 2008
Grant Date -
Sep 13, 2007
app pub date -
Mar 10, 2006
filing date -
Mar 10, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A feedback loop corrects timing errors by reducing deviations from a constant radar sweep rate. Errors are detected and fed back to a phase corrector in a high gain feedback system. A precision radar rangefinder can be implemented with a direct digital synthesizer (DDS) that includes feedback error correction for reducing range errors by, for example, 100 times, or to 0.1 mm. An error-corrected DDS swept timing system can enable a new generation of highly flexible, repeatable and accurate radar, laser and guided wave rangefinders.
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