METHOD AND DEVICE FOR IMPROVING THE PASSBAND OF A PHYSICAL SYSTEM
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United States of America Patent
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Issued Date -
Dec 30, 2010
app pub date -
Feb 9, 2009
filing date -
Feb 19, 2008
priority date (Note) -
Abandoned
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Abstract
The invention relates to the improvement of the passband of physical systems. Use is made of a finite impulse response filter which is calculated in the following manner, on the basis of the behavior (observed or known) of the physical system: the impulse response a(t) of the physical system according to a temporal or spatial variable is determined; an impulse response b(t) of similar form but compressed according to the scale of the variable t in a ratio n and expanded in amplitude in the same ratio is calculated sample by sample, and the coefficients of a finite impulse response filter able to provide at its output the signal b(t) when the signal a(t) is applied to its input are calculated. This finite impulse response filter is incorporated into the physical system, preferably at the output, so as to improve the passband thereof in the ratio n.
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