2005
DOI: 10.1142/s0218126605002593
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A Zero Phase-Lag Homodyne Demodulation Technique for Synchronous Measurement Applications and Its Fpga Implementation

Abstract: A simple homodyne direct digital demodulation technique that is insensitive to sensor induced phase-error and its innovative FPGA implementation are presented here. This novel demodulation scheme does not need a low pass filter; thereby the inherent filter time lag is eliminated. A direct digital read-out of the demodulated signal, i.e., the measurand value, is obtained through analog-to-digital conversion of the modulated signal at an instant that coincides with its peak. This peak sampling eliminates the pro… Show more

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