| Paper: | SPCOM-P5.2 | ||
| Session: | Synchronization | ||
| Time: | Wednesday, May 17, 10:00 - 12:00 | ||
| Presentation: | Poster | ||
| Topic: | Signal Processing for Communication: Signal detection, estimation, separation and equalization | ||
| Title: | Second-order based cyclic frequency estimates: the case of digital communication signals | ||
| Authors: | Pierre Jallon, Antoine Chevreuil, Université de Marne-la-Vallée, France | ||
| Abstract: | Both the standard estimate (Gardner 1988) of the second-order cyclic frequency of a digital communication signal and its improved versions (based on a weighted criterion (Gini 1998, Dandawatté 1994 and Mazet 1999) or a denoising of the cyclic periodogram (Touati 2003) do not take into account a key property of the signal. Indeed, the support of the cyclo-spectrum at the true cyclic frequency is a narrow interval centered around half this cyclic frequency. This fact is taken into account in this contribution. A theoretical fact explains the improvement over the standard method. Simulations confirm the expectation. | ||
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