FINITE IMPULSE RESPONSE FILTER FOR PRODUCING OUTPUTS HAVING DIFFERENT PHASES

A method and system for designing and implementing a finite impulse response (FIR) filter to create a plurality of output signals, each output signal having the same frequency but at a different phase shift from the other output(s), is described. Values are determined for the resistors, or other ele...

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Bibliographic Details
Main Authors MALLINSON, A., MARTIN, YAO, HU, JING, FORMAN, DUSTIN
Format Patent
LanguageEnglish
French
German
Published 29.01.2014
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS
RESONATORS
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Summary:A method and system for designing and implementing a finite impulse response (FIR) filter to create a plurality of output signals, each output signal having the same frequency but at a different phase shift from the other output(s), is described. Values are determined for the resistors, or other elements having impedance values, in a FIR filter having a plurality of outputs, such that each output has the same frequency response but a different phase than the other output(s). This is accomplished by the inclusion of a phase factor in the time domain calculation of the resistor values that does not change the response in the frequency domain. The phase shift is constant and independent of the frequency of the output signal.
Bibliography:Application Number: EP20120760719