Accurate estimation of digital communication system metrics - SNR, EVM and /spl rho/ in a nonlinear amplifier environment

Accurate estimation of digital communication system metrics - SNR, EVM and /spl rho/ in a nonlinear amplifier environment

A nonlinear spectral analysis technique that enables digital communication system metrics; SNR, EVM and the waveform quality factor (/spl rho/) to be related to in-band distortion spectrum is presented. System metrics are estimated from the measured output power and in-band distortion power. The est...

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Bibliographische Detailangaben
Hauptverfasser: Gharaibeh, K.M., Gard, K.G., Steer, M.B.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Digital communication
Distortion measurement
Nonlinear distortion
Performance analysis
Power amplifiers
Power generation
Power measurement
Q factor
Signal analysis
Spectral analysis
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Beschreibung
Zusammenfassung:A nonlinear spectral analysis technique that enables digital communication system metrics; SNR, EVM and the waveform quality factor (/spl rho/) to be related to in-band distortion spectrum is presented. System metrics are estimated from the measured output power and in-band distortion power. The estimated metrics are verified by direct measurements of each metric using a vector signal analyzer (VSA) performed on a forward-link IS-95 signal. Estimated system metrics are in excellent agreement with measured values.
DOI:10.1109/ARFTGF.2004.1427570