Patent ID: 8180000
Filing Date: 2012-05-15
Classification: G01S

Abstract:
1. A global navigation satellite system (GNSS) receiver, comprising: a radio signal processing unit adapted to process radio signals transmitted from an active set of signal sources and based thereon produce position/time related data, the signals being processed in parallel with respect to a real-time signal data rate of the signals by a respective tracking channel resource allocated for each signal source in the active set, wherein the processing unit comprises at least one monitoring channel resource adapted to process radio signals transmitted from each of at least two signal sources in an additional set of signal sources different from the signal sources in the active set, and the processing unit is adapted to process the radio signals from the signal sources in the additional set according to a cyclic processing sequence involving: processing signals from a first additional signal source during a first phase of the sequence, processing signals from at least one second additional signal source during at least one second phase of the sequence, and determining in each of said phases a respective set of parameters regarding the radio signals received from one signal source in the additional set, the set of parameters comprising tracking-parameter data.