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Volume 31 Issue 5
Dec.  2010
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Yang Lin, Xu Xiao-dong, Lu You-rong, Dai Xu-chu, Xu Pei-xia. Spectrum Line Feature Analysis for Digital Communication Signals[J]. Journal of Electronics & Information Technology, 2009, 31(5): 1067-1071. doi: 10.3724/SP.J.1146.2008.00215
Citation: Yang Lin, Xu Xiao-dong, Lu You-rong, Dai Xu-chu, Xu Pei-xia. Spectrum Line Feature Analysis for Digital Communication Signals[J]. Journal of Electronics & Information Technology, 2009, 31(5): 1067-1071. doi: 10.3724/SP.J.1146.2008.00215

Spectrum Line Feature Analysis for Digital Communication Signals

doi: 10.3724/SP.J.1146.2008.00215
  • Received Date: 2008-02-27
  • Rev Recd Date: 2008-07-07
  • Publish Date: 2009-05-19
  • Digital communication signals of different modulation schemes, with the nonlinearities applied to the complex envelope, always manifest themselves in spectrum line feature. In this paper, a complete theoretical analysis for the square and quartic spectrum line feature is carried out. The spectrum lines existence, position and amplitude are deduced, which can server as a robust feature for potential application. Computer simulation results indicate that the spectrum line can be extracted even in the serious noisy and multi-path fading environment.
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