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Title: Real time phase noise meter based on a digital signal processor
Authors: Angrisani, Leopoldo
D'Arco, Mauro
Greenhall, Charles A.
Schiano Lo Morille, Rosario
Keywords: phase noise
digital signal processing
quadrature demodulation
Issue Date: 24-Apr-2006
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2006.
Citation: IEEE Intrumental and Measurement Technology Conference, Sorrento, Italy, April 24, 2006.
Abstract: A digital signal-processing meter for phase noise measurement on sinusoidal signals is dealt with. It enlists a special hardware architecture, made up of a core digital signal processor connected to a data acquisition board, and takes advantage of a quadrature demodulation-based measurement scheme, already proposed by the authors. Thanks to an efficient measurement process and an optimized implementation of its fundamental stages, the proposed meter succeeds in exploiting all hardware resources in such an effective way as to gain high performance and real-time operation. For input frequencies up to some hundreds of kilohertz, the meter is capable both of updating phase noise power spectrum while seamlessly capturing the analyzed signal into its memory, and granting as good frequency resolution as few units of hertz.
Appears in Collections:JPL TRS 1992+

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