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- W2767067794 abstract "Ionospheric scintillation is the physical phenomena affecting radio waves propagating from the space through the ionosphere to earth. The signal distortion induced by scintillation can pose a major threat to some GNSS application. Scintillation is one of the more challenging propagation scenarios, particularly affecting high-precision GNSS receivers which require high quality carrier phase measurements; and safety critical applications which have strict accuracy, availability and integrity requirements. Under ionospheric scintillation conditions, GNSS signals are affected by fast amplitude and phase variations, which can compromise the receiver synchronization. To take into account the underlying correlation among different frequency bands, we propose a new multivariate autoregressive model (MAR) for the multi-frequency ionospheric scintillation process. Multi-frequency GNSS observations and the scintillation MAR are modeled in state-space, allowing independent tracking of both line-of-sight phase variations and complex gain scintillation components. The resulting joint synchronization and scintillation mitigation problem is solved using a robust nonlinear Kalman filter, validated using real multi-frequency scintillation data with encouraging results." @default.
- W2767067794 created "2017-11-10" @default.
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- W2767067794 date "2017-01-01" @default.
- W2767067794 modified "2023-10-13" @default.
- W2767067794 title "Multi-frequency GNSS robust carrier tracking for ionospheric scintillation mitigation" @default.
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- W2767067794 doi "https://doi.org/10.1051/swsc/2017020" @default.
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