论文信息 - A new ML-based data-aided feedforward symbol synchronizer for burst-mode transmission

A new ML-based data-aided feedforward symbol synchronizer for burst-mode transmission

A data-aided (DA) feedforward symbol synchronizer based upon the maximum-likelihood (ML) criterion is proposed. The algorithm is carrier-phase independent and is designed for operation in burst-mode, narrow-band communication systems employing linear modulation. The accuracy of the proposed algorithm is assessed by simulation using QPSK signaling. The results show that the performance of the proposed synchronizer is very close to the theoretical minimum limit (variance of the estimates near the Cramer-Rao lower bound) and is also significantly better than that of other popular circuits such as the square-law synchronizer.

Moisés Simões Piedade | Gonçalo Nuno Gomes Tavares | Luís Miguel Gomes Tavares

[1] Umberto Mengali,et al. The modified Cramer-Rao bound and its application to synchronization problems , 1994, IEEE Trans. Commun..

[2] L. Franks,et al. Carrier and Bit Synchronization in Data Communication - A Tutorial Review , 1980, IEEE Transactions on Communications.

[3] Heinrich Meyr,et al. Digital filter and square timing recovery , 1988, IEEE Trans. Commun..

[4] Umberto Mengali,et al. Correction to "Feedforward Ml-based Timing Estimation With PSK Signals" , 1998, IEEE Commun. Lett..

[5] Umberto Mengali,et al. Feedforward ML-based timing estimation with PSK signals , 1997, IEEE Communications Letters.

[6] Marc Moeneclaey,et al. Tracking performance comparison of two feedforward ML-oriented carrier-independent NDA symbol synchronizers , 1992, IEEE Trans. Commun..