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Volume 32 Issue 5
May  2010
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Shi Ming-jun, Deng Ming-gui, Zhou Shi-dong, Lei Jun, Yao Yan. On the Data-Aided Estimation of Modulation Parameters of CPM[J]. Journal of Electronics & Information Technology, 2010, 32(5): 1146-1151. doi: 10.3724/SP.J.1146.2009.00523
Citation: Shi Ming-jun, Deng Ming-gui, Zhou Shi-dong, Lei Jun, Yao Yan. On the Data-Aided Estimation of Modulation Parameters of CPM[J]. Journal of Electronics & Information Technology, 2010, 32(5): 1146-1151. doi: 10.3724/SP.J.1146.2009.00523

On the Data-Aided Estimation of Modulation Parameters of CPM

doi: 10.3724/SP.J.1146.2009.00523
  • Received Date: 2009-04-10
  • Rev Recd Date: 2009-06-18
  • Publish Date: 2010-05-19
  • In non-cooperative communication scenarios, coherent demodulation of Continuous Phase Modulation (CPM) signals requires precise estimation of CPM modulation parameters. A new data-aided modulation index and shaping pulse joint estimation algorithm is proposed for CPM signals. The differential phase between symbols is used to eliminate signal phase memories, and Least-Square method is used for parameters estimations. Theoretical analysis and numerical simulations show that it is unbiased. The estimating error is converged to zero at 1/N where N is the length of observation data. The algorithm is applicable to both full and partial response CPM modulations and presents good anti-noise performance.
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