The carrier-multipath observable: a new carrier-phase multipath mitigation technique | Zendy

Ramin Moradi | Zendy; Wolfgang Schuster | Zendy; Shaojun Feng | Zendy; Altti Jokinen | Zendy; Washington Y. Ochieng | Zendy

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The carrier-multipath observable: a new carrier-phase multipath mitigation technique

Author(s) -

Ramin Moradi,

Wolfgang Schuster,

Shaojun Feng,

Altti Jokinen,

Washington Y. Ochieng

Publication year - 2014

Publication title -

gps solutions

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.495

H-Index - 73

eISSN - 1521-1886

pISSN - 1080-5370

DOI - 10.1007/s10291-014-0366-8

Subject(s) - multipath propagation , observable , multipath mitigation , multipath interference , computer science , ambiguity resolution , phase (matter) , electronic engineering , telecommunications , physics , global positioning system , engineering , gnss applications , channel (broadcasting) , quantum mechanics

Modeling and mitigating carrier-phase multi- path errors continue to be a significant challenge for high- accuracy positioning using global navigation satellite sys- tems. The multipath error is dependent on the operational environment and therefore cannot be mitigated by differ- encing techniques. The effect of multipath is accentuated when observables based on linear combinations of mea- surements from two or more frequencies are formulated. We develop a new carrier-phase multipath error observable that isolates the inter-frequency carrier-phase multipath error for linear combinations of observables, such as wide- lane (WL). Real-time kinematic positioning results from varying baseline lengths show that a significant reduction in between 14 and 47 % in the time to initial ambiguity resolution are achieved by correcting the WL observable using the new carrier-phase multipath error observable

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