Very fast swept spectrum analyzer
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United States of America Patent
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Mar 2, 2004
Grant Date -
Aug 7, 2003
app pub date -
Feb 5, 2002
filing date -
Feb 5, 2002
priority date (Note) -
Expired
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Abstract
Analyzing a swept spectrum signal formed by mixing a ramping local oscillator and an input signal to generate an IF signal, the resulting IF signal having a phase change with respect to the input signal, the phase change including a quadratic portion. For analysis, the IF signal is processed such that the quadratic component of the phase change is removed. The quadratic component of the phase change is removed with a complex filter.
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