High-Speed Modem Timing Recovery - Implementation of low complexity timing recovery algorithms for high data rate communications

Abstract

This project is given to me as a master-degree thesis, for the signal processing group at NTNU and WideNorth AS. The intention is to get a better understanding of how efficient and reliable different sample timing algorithms are at high data rates in a satellite communication system. In this project and report I try to build a simulation system for communication over an averaged white noise channel, with different sample timing algorithms at the receiver side. The project started out, reading up on sample timing, understanding the signal processing and theory behind. As this is quite the field to research, this took time. I must give a huge thank you to the Mathworks team, as the matlab library has been a rescue, although not always easy to import into your own code. Programming in matlab compared to a lot of other languages makes a lot trivial. This report shows how to set up the framework given in [1]. A brief introduction is given, the theory is shown in the Theory section and the matlab code has been commented in the Matlab implementation section. The results of timing correction using different timing recovery algorithms are shown in it s respective section. A short conclusion with commenting on future work is then presented.