System and method of extraction of nonstationary sinusoids
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United States of America Patent
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Feb 21, 2006
Grant Date -
Jul 8, 2004
app pub date -
Oct 31, 2003
filing date -
May 28, 2001
priority date (Note) -
Expired
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Abstract
Signal processing techniques and systems and, in particular, an apparatus, system, algorithm and method of extraction of sinusoidal signals of time-varying nature is described. The apparatus, system, algorithm and method provide for extraction of a specified single sinusoidal component of an input signal, potentially containing other components and noise, and tracking variations of the amplitude, phase and frequency of such a sinusoid component over time. A 'tool' or 'core unit,' embodying the apparatus, system, algorithm or method may be used in isolation or as the fundamental building block of single-core or multi-core systems.
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