Abstract
For coherent detection, reference signals comprising the carrier with correct frequency and phase and also the data symbol transition instants must be available. This is referred to as synchronization. To avoid wasting power, these signals should not be transmitted separately, but should instead be regenerated at the detector in an optimum manner. Actually, both the transmitted data sequence and the reference signals should be estimated jointly according to some suitable optimization criterion, e. g., the maximum likelihood (ML) principle. We shall outline such an approach.
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Anderson, J.B., Aulin, T., Sundberg, CE. (1986). Synchronization. In: Digital Phase Modulation. Applications of Communications Theory. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-2031-7_9
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DOI: https://doi.org/10.1007/978-1-4899-2031-7_9
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