Matched filters for processing related signal components
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United States of America Patent
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Apr 1, 1997
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N/A
app pub date -
Dec 13, 1995
filing date -
Dec 13, 1995
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Abstract
A circuit for processing related signal components, such as in-phase and quadrature signal components generated within a modulator, in which a first filter and a second filter are matched such that the gain of each such filter is nearly identical. A modulator is provided having matched filters in accordance with the present invention in which the gain 'K' of each filter is equal to 1. By using a filter which has a gain of 1, the gain is removed from consideration when attempting to match the filter response of one filter to another. Furthermore, each filter is relatively simple to implement, having only four resistors, two capacitors, and two operational amplifiers.
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