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Closed-Loop Estimation of Oscillator g-Sensitivity in a GNSS/IMU System
Published 20 Jul 2016 in cs.SY, math.DS, and math.OC | (1607.05993v1)
Abstract: We propose a simple method for estimating crystal oscillator g-sensitivity in inertially aided Global Navigation Satellite System (GNSS) receivers. It does not require any specific equipment, like GNSS signal simulators or rate tables. The method is based on analyzing closed-loop phase tracking errors. This enables us to utilize the actual GNSS signal as the frequency reference, despite the presence of an unknown Doppler shift in it. The method has been successfully applied to the calibration of an oven-controlled crystal oscillator.
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