Tightly Coupled Integration of GPS Ambiguity Fixed Precise Point Positioning and MEMS-INS through a Troposphere-Constrained Adaptive Kalman Filter

Tightly Coupled Integration of GPS Ambiguity Fixed Precise Point Positioning and MEMS-INS through a Troposphere-Constrained Adaptive Kalman Filter

Precise Point Positioning (PPP) makes use of the undifferenced pseudorange and carrier phase measurements with ionospheric-free (IF) combinations to achieve centimeter-level positioning accuracy. Conventionally, the IF ambiguities are estimated as float values. To improve the PPP positioning accurac...

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Bibliographic Details
Main Authors: Houzeng Han, Tianhe Xu, Jian Wang
Format: Article
Language:English
Published: MDPI AG 2016-07-01
Series:Sensors
Subjects:
precise point positioning (PPP)
inertial navigation system (INS)
tightly coupled
ambiguity resolution
troposphere constraint
adaptive filtering
Online Access:http://www.mdpi.com/1424-8220/16/7/1057

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