Abstract
The carrier phase observable is the most preferable means for observation of ionospheric scintillation events. As the ionospheric scintillations show different features at different GNSS frequencies the single-frequency data should be used for complex analysis and data interpretation. The second-order derivative of the GPS signal carrier phase is suggested as a promising means to detect small-scale ionospheric disturbances. The high-rate L1 phase data with no additional processing are used for this purpose. Modeling and experimental results proved the hypothesis. It was revealed the strict dependence of sensitivity of the second-order derivative parameter on GPS receiver hardware features and carrier phase sampling rate.
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