Einzeltreffer — DigiBib

A method for providing a differential code bias, in particular a primary differential code bias and a secondary differential code bias, in a global navigation satellite system using satellites communicating by using at least a first signal and an additional first signal both having a first carrier frequency and a second signal and an additional second signal both having a second carrier frequency, where a primary differential code bias for the first signal and the second signal is determined and wherein the primary differential code bias is used for determining, and in particular providing, a secondary differential code bias for the additional first signal and the additional second signal.

Titel:	Method for providing differential code bias (DCB) correction for a global navigation satellite system (GNSS)
Link:	View record in USPTO Patent Applications (Volltext)
Veröffentlichung:	2023
Medientyp:	Patent
Sonstiges:	Nachgewiesen in: USPTO Patent Applications Sprachen: English Document Number: 20230350077 Publication Date: November 2, 2023 Appl. No: 17/780585 Application Filed: November 16, 2020 Claim: 1.-15. (canceled) Claim: 16. A method for providing a differential code bias, in particular a primary differential code bias and a secondary differential code bias, in a global navigation satellite system using satellites communicating by using at least a first signal and an additional first signal both on a first carrier frequency and a second signal and an additional second signal both on a second carrier frequency; wherein primary differential code biases for the first signal and the second signal are determined and provided and wherein the primary differential code biases are used for determining secondary differential code biases for the additional first signal and the additional second signal, wherein a first receiver can observe and/or analyse the first signal and the second signal and cannot observe and/or analyse the additional first signal and the additional second signal, wherein a second receiver can observe and/or analyse the additional first signal and the additional second signal and cannot observe and/or analyse the first signal and the second signal, wherein the second signal and/or the additional second signal comprises correction information for precise point positioning. Claim: 17. The method according to claim 16, wherein a common signal is used for both approximating the primary differential code bias and the secondary differential code bias. Claim: 18. The method according to claim 17, wherein the first signal and the second signal are tracked by a first receiver, wherein the additional first signal and the additional second signal are tracked by a second receiver and wherein the common signal is tracked by the first receiver and the second receiver. Claim: 19. The method according to claim 16, wherein the first signal and a third signal, having a third frequency, are used for dual frequency measurements. Claim: 20. The method according to claim 16, wherein for determining the primary differential code bias observations, encoded in the first signal and the second signal, are used. Claim: 21. The method according to claim 16, wherein a time evaluation of the primary differential code bias and/or the secondary differential code bias is determined. Claim: 21. The method according to claim 16, wherein the primary differential code bias and/or the secondary differential code bias is provided in near real time. Claim: 23. The method according to claim 16, further comprising: receiving raw data from satellites at a plurality of reference stations; forwarding the raw data received at the reference stations to a central computation unit in a real-time data stream; determining the correction information at the computation unit based on the raw data received from the different reference stations and transmitting the correction information via at least one satellite to the receiver for determining a position of the mobile receiver. Claim: 24. A plurality of reference stations and a central computation unit, in particular a single central computation unit, configured for providing a differential code bias, in particular a primary differential code bias and a secondary differential code bias, in a global navigation satellite system using satellites communicating by using at least a first signal and an additional first signal both having a first carrier frequency and a second signal and an additional second signal both having a second carrier frequency; wherein primary differential code biases for the first signal and the second signal are determined by the central computation unit and wherein primary differential code biases are used for determining, and providing, secondary differential code biases for the additional first signal and the additional second signal, wherein a first receiver can observe and/or analyse the first signal and the second signal and cannot observe and/or analyse the additional first signal and the additional second signal, wherein a second receiver can observe and/or analyse the additional first signal and the additional second signal and cannot observe and/or analyse the first signal and the second signal, wherein the second signal and/or the additional second signal comprises correction information for precise point positioning. Claim: 25. The plurality of reference station and the central computation unit according to claim 24, further configured for receiving raw data from satellites at a plurality of said reference stations; forwarding the raw data received at the reference stations to said central computation unit using a data stream; determining a correction information at the computation unit based on the raw data provided from the different reference stations and transmitting the correction information via at least one satellite and/or terrestrial communication means to the receiver for determining a position of the mobile receiver. Claim: 26. The plurality of reference stations and the central computation unit according to claim 25, comprising a reference station handling the additional first signal and/or the additional second signal. Claim: 27. A software product and/or a network, wherein the software product and/or the network comprises program code for implementing the method according to claim 16. Current International Class: 01; 01; 01

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Method for providing differential code bias (DCB) correction for a global navigation satellite system (GNSS)