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Real Time Phase Noise Meter Based on a Digital Signal ProcessorA 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.
Document ID
20080013210
Document Type
Preprint (Draft being sent to journal)
External Source(s)
Authors
Angrisani, Leopoldo (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
D'Arco, Mauro (Naples Univ. Italy)
Greenhall, Charles A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Schiano Lo Morille, Rosario (Naples Univ. Italy)
Date Acquired
August 24, 2013
Publication Date
April 24, 2006
Subject Category
Acoustics
Meeting Information
IEEE Intrumental and Measurement Technology Conference(Sorrento)
Distribution Limits
Public
Copyright
Other
Keywords
phase noise
quadrature demodulation
digital signal processing