Enhanced Carrier Phase Synchronization Performance

Abstract

A general technique is introduced to enhance the performance of carrier phase error synchronization loops. This technique employs a notch filter inserted in a structure cascaded with the loop filter. Computer simulations of some well-known carrier phase synchronization loops enhanced with the proposed technique show that an approximately jitter free tracking and a great improvement in bit error rate (BER) results have been achieved.

Improved Decision-Directed Early-Late Symbol Timing Error Detector

“…Symbol synchronization consists of estimation of the timing phase, and application of the estimate to the sampling process [1]. Frequency and phase synchronization must also be performed at the receiver [2,3].…”