Abstract
In this paper, the problem of recognizing APSK modulation for DVB-S2 is studied. We propose a novel recognition method, which is robust to carrier frequency offset and phase error. Firstly, the radius-constellation is defined and the algorithm to transform the traditional constellation to radius-constellation is proposed. And then, we propose a first-ever radius-constellation based method to recognize the APSK modulation, using Generalized Likelihood Ratio Test. Simulation results show that the proposed method is effective for APSK modulation recognition under frequency offset.










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Wu, H., Yuan, YJ., Huang, ZT. et al. APSK Modulation Recognition for DVB-S2 Using GLRT and Radius-Constellation Under Frequency Offset. Wireless Pers Commun 82, 1213–1224 (2015). https://doi.org/10.1007/s11277-015-2276-7
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DOI: https://doi.org/10.1007/s11277-015-2276-7