LAUSR

Tuning a Kalman filter carrier tracking algorithm in the presence of ionospheric scintillation

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1 Published in 2017 at "GPS Solutions"

DOI: 10.1007/s10291-016-0597-y

Abstract: Strong ionospheric electron content gradients may lead to fast and unpredictable fluctuations in the phase and amplitude of the signals from Global Navigation Satellite Systems (GNSS). This phenomenon, known as ionospheric scintillation, is capable of… read more here.

Keywords: ionospheric scintillation; kalman filter; scintillation; carrier tracking ... See more keywords

Lock threshold deterioration induced by antenna vibration and signal coupling effects in hypersonic vehicle carrier tracking system of Ka band

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0 Published in 2018 at "Chinese Journal of Aeronautics"

DOI: 10.1016/j.cja.2018.01.006

Abstract: Abstract The envelope of a hypersonic vehicle is affected by severe fluctuating pressure, which causes the airborne antenna to vibrate slightly. This vibration mixes with the transmitted signals and thus introduces additional multiplicative phase noise.… read more here.

Keywords: carrier tracking; hypersonic vehicle; vibration; coupling effects ... See more keywords

A Coarse-to-Fine Adaptive Kalman Filter for Weak GNSS Signals Carrier Tracking

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1 Published in 2019 at "IEEE Communications Letters"

DOI: 10.1109/lcomm.2019.2940006

Abstract: The tracking performance of the standard Kalman filter (KF)-based carrier tracking depends heavily on the potentially insufficient priori noise covariance. The inadequate prior knowledge will degrade the tracking sensitivity when the receiver experiences weak signal… read more here.

Keywords: carrier tracking; kalman filter; coarse fine;

Kalman Filter-Based Robust Closed-Loop Carrier Tracking of Airborne GNSS Radio-Occultation Signals

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0 Published in 2020 at "IEEE Transactions on Aerospace and Electronic Systems"

DOI: 10.1109/taes.2020.2972248

Abstract: Global navigation satellite system radio occultation (GNSS-RO) signals have been demonstrated as a viable means to retrieve atmospheric profiles. Current GNSS-RO observations rely on open-loop (OL) processing of the signals, especially for signals propagating through… read more here.

Keywords: filter based; carrier tracking; loop; kalman filter ... See more keywords