ESTIMATION OF INTER-FREQUENCY BIAS FOR AMBIGUITY RESOLUTION IN GLOBAL NAVIGATION SATELLITE SYSTEM RECEIVERS

Carrier phase measurements and code measurements are accessed (505) for satellite signals of a global navigation satellite system. An initial set of floating-point ambiguities are determined (510) based on the measurements, the initial set of floating-point ambiguities including inter-frequency bias...

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Bibliographische Detailangaben
Hauptverfasser:	DAI, Liwen, L, ZHANG, Yujie
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	Carrier phase measurements and code measurements are accessed (505) for satellite signals of a global navigation satellite system. An initial set of floating-point ambiguities are determined (510) based on the measurements, the initial set of floating-point ambiguities including inter-frequency bias (IFB). Disclosed example methods further include performing a least squares search process based on the initial set of floating-point ambiguities to determine a set of integer ambiguities and an estimate of the IFB (515). In some examples, an additional (e.g., wide-lane) filter is used to realize a combination of carrier phase and code IFB. In some examples, the resulting IFB estimate and the set of integer ambiguities are used to estimate a position of a receiver (520), determine a satellite correction signal, or otherwise.