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A soft decision directed phase detector suited to satellite communications at very low signal to noise ratio | IEEE Conference Publication | IEEE Xplore

A soft decision directed phase detector suited to satellite communications at very low signal to noise ratio


Abstract:

The introduction of data redundancy for the purpose of carrier synchronization over a Gaussian channel may be a profitable operation. We present in this paper the perform...Show More

Abstract:

The introduction of data redundancy for the purpose of carrier synchronization over a Gaussian channel may be a profitable operation. We present in this paper the performance of a phase detector suited to 8 PSK receivers, based on the soft decoding of a single parity-check code. It is shown that in presence of phase noise and a quite important frequency error, the proposed synchronization scheme outperforms the classical non-data-aided and decision-directed algorithms, reducing the phase jitter in considerable proportions.
Date of Conference: 05-08 June 2005
Date Added to IEEE Xplore: 12 September 2005
Print ISBN:0-7803-8867-4

ISSN Information:

Conference Location: New York, NY, USA

1. Introduction

The recent progress in the field of channel coding, highlighted by the success of turbo-codes and low-density parity-check codes, led to the design of systems intending to operate at ever-decreasing signal to noise ratios (SNR). In particular, the new standards DVB-RCS [1] and DVB-S2 [2] developed for satellite multimedia telecommunication systems involve very performant coding schemes suited to the additive white Gaussian noise (AWON) channel. The problem of carrier synchronization is critical in such situation (very low SNR, phase noise, frequency deviation.), especially for transmission schemes involving high-order phase modulations.

References

References is not available for this document.