Synchronizers for Digital Communications

Abstract

Synchronization of digital waveforms is an area of active research. For the latest information, the reader is encouraged to review the latest issues of IEEE Transactions on Communications. Several references exist that can provide a larger theoretical foundation than provided in this chapter [1-5]. Today's demand for wireless services promises to exceed the available frequency spectrum, necessitating more efficient modulation techniques. Waveforms such as Continuous Phase Modulation (CPM) or Trellis Coded Modulation (TCM) provide more efficient spectral usage, but synchronization is significantly more difficult than traditional Phase Shift Keying (PSK) or Frequency Shift Keying (FSK).