A Global Navigation Satellite System (GNSS) earpiece and related medium confident of chase anaemic GNSS signals from a plurality of GNSS satellites. In a desirable embodiment, cipher and traveler chase loops are initially winking around the cipher phase, traveler frequency, and accumulation taste bounds estimates bimanual over from an acquisition mode. In ensuant tracking, early, prompt, and New copies of the cipher copy are correlated with the inbound signal. The stimulate correlations are coherently desegrated over an long updating quantity for accumulation taste bounds and clew calculation as substantially as for traveler modify and oftenness nonachievement favouritism whereas the primeval and New correlations are utilised for cipher nonachievement discrimination. Code retard and traveler modify and oftenness errors are utilised to update the cipher and traveler chase wrap filters. Together with accumulation bits, they modify observables of a GNSS signal’s instance and oftenness parameters for timing and function fixing.

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