SIGNALS FAST ACQUISITION ALGORITHM FOR GNSS RECEIVERS

И. В. Буняева

Abstract


The synthesis of digital algorithm for fast search of navigation signals in GNSS is accomplished. The architecture of the corresponding device for quick search of signals is discussed, as well as its capabilities in comparison with traditional approaches. It is proved, that the best method of achieving the required sensitivity of the algorithm (in view of the simplicity of implementation) is a cascade of coherent and non-coherent accumulation of the received signals. At the same time, it is technically easier to set the minimal possible time of the coherent accumulation, and the necessary sensitivity is to be achieved with the help of the non-coherent accumulation.

Keywords


fast acquisition engine, navigation signal, GNSS, DFT

References


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DOI: https://doi.org/10.32620/reks.2016.1.08

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