Improved cycle slip detection method for generalized continuation extrapolation Doppler
The invention provides an improved cycle slip detection method for generalized continuation extrapolation Doppler, which comprises the following steps of: 1, acquiring single-frequency observation data to obtain a carrier phase observation value and a Doppler observation value; 2, judging whether si...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides an improved cycle slip detection method for generalized continuation extrapolation Doppler, which comprises the following steps of: 1, acquiring single-frequency observation data to obtain a carrier phase observation value and a Doppler observation value; 2, judging whether signal interruption or lock losing occurs or not, and selecting latest prior data according to lock losing time or sampling interval; 3, establishing a generalized extrapolation model by using the acquired prior data; 4, resolving a constant coefficient of the generalized extrapolation model; 5, establishing a Doppler extrapolation polynomial by using the calculated constant coefficient; 6, calculating a Doppler extrapolation value at the next moment by using an extrapolation polynomial; 7, using the extrapolation Doppler value to participate in Doppler calculation cycle slip; 8, subtracting cycle slip values detected by adjacent epochs; ninthly, the absolute value and the integer value of the difference cycle slip v |
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