Schrempp, Mark2009-05-042009-05-042009-05-04http://hdl.handle.net/2097/1363In this thesis, we investigate two carrier tracking loops. We provide a basic overview of phase-lock loops. We derive a two-state EKF tracking loop. The two-state EKF estimates phase error and frequency error. The estimate of frequency error is fed back to an NCO to complete the tracking loop.en-USTracking LoopKalman FilterThesisEngineering, Electronics and Electrical (0544)