Invention Grant
- Patent Title: Phase multi-path mitigation
- Patent Title (中): 相位多路径缓解
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Application No.: US14199923Application Date: 2014-03-06
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Publication No.: US09036682B2Publication Date: 2015-05-19
- Inventor: Richard G. Keegan , Ronald R. Hatch
- Applicant: Deere & Company
- Applicant Address: US IL Moline
- Assignee: DEERE & COMPANY
- Current Assignee: DEERE & COMPANY
- Current Assignee Address: US IL Moline
- Agency: Morgan, Lewis & Bockius LLP
- Main IPC: H04B1/69
- IPC: H04B1/69 ; H04B1/707 ; H04B1/713 ; H04B1/711 ; G01S19/22 ; G01S19/30 ; H04B1/7077

Abstract:
A method for mitigating a multi-path-induced error in a global navigation satellite system comprises, for a respective measurement epoch, obtaining respective representations of a composite signal including a plurality of value-pairs of the composite signal. The method further comprises, with respect to the measurement epoch: obtaining a plurality of coefficients for a set of linear equations based on the plurality of value-pairs of the composite signal; iteratively obtaining solutions for the set of linear equations, thereby solving for a code tracking timing offset, a time delay of a multi-path signal of the composite signal relative to its direct-path signal, and orthogonal representations of the multi-path signal; determining a phase error between the composite signal and the direct-path signal, due to the time delay, in accordance with the orthogonal representations of the multi-path signal; and correcting for the code tracking timing offset and the phase error.
Public/Granted literature
- US20140376598A1 Phase Multi-Path Mitigation Public/Granted day:2014-12-25
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