A communications device includes a phase and frequency tracking loop having a signal input and adjustable loop filter that establishes a predetermined tracking loop bandwidth for samples of communication signals received at the signal input and processed within the tracking loop. A tracking loop update...http://www.google.de/patents/US20100067619?utm_source=gb-gplus-sharePatent US20100067619 - COMMUNICATIONS DEVICE USING MEASURED SIGNAL-TO-NOISE RATIO TO ADJUST PHASE AND FREQUENCY TRACKING
