Citation
Abstract
A generalized maximum a posteriori (MAP) symbol synchronizer for arbitrary nonoverlapping pulse shape and data-transition density is derived, and a simplified realization is presented. Acquisition performance at low to very low symbol signalto-noise ratios (SNRs) is investigated and compared against the conventional datatransition tracking loop (DTTL). Simulation results show that the MAP symbol synchronizer can operate at very low symbol SNRs where the DTTL fails. Furthermore, the new symbol synchronizer reduces the initial acquisition time by at least one order of magnitude as compared with the DTTL. It also has been shown that the new symbol synchronizer is suitable for minimum-shift-keying (MSK) signaling waveforms.
Keywords
maximum a posteriori (MAP) symbol synchronizer
Details
- Volume
- 42-132
- Published
- February 15, 1998
- Pages
- 1–13
- File Size
- 399.0 KB