Communications and Network

Volume 5, Issue 3 (September 2013)

ISSN Print: 1949-2421   ISSN Online: 1947-3826

Google-based Impact Factor: 2.03  Citations  

Three-Points Modulator Based on DPLL for Wideband Polar Modulation

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DOI: 10.4236/cn.2013.53B2027    4,017 Downloads   4,994 Views  Citations


We present a nonlinear event-driven model of a Digital PLL used in the context of a polar modulation. This modeling has shown that the estimation method of the TDC gain has a big impact on the EVM for wideband modulation and a solution has been proposed which consists to add the modulation on the gain after calibration of the gain offset. This transforms the classical two-points modulator into a three-points modulator. This implementation has been validated for WCDMA standard.

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Kieffer, J. , Rieubon, S. , Houdebine, M. , Dedieu, S. and Novakov, E. (2013) Three-Points Modulator Based on DPLL for Wideband Polar Modulation. Communications and Network, 5, 140-143. doi: 10.4236/cn.2013.53B2027.

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