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Micro & Nano Letters

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GNSS velocimeter by adaptively combining carrier phase and Doppler measurements

Content Provider	IET Digital Library
Author	Zhang, Laihong Chang, Guobin Chen, Chao Zhang, Siyu Zhu, Ting
Abstract	In order to use a stand-alone global navigation satellite system (GNSS) receiver to determine the stable instantaneous velocity, a new hybrid GNSS velocimetry approach combining carrier phase and Doppler measurements is proposed. This is a data fusion problem. The problem is expressed as a state-space model, in which the deviation between the average velocity determined by the time difference carrier phase approach and the instantaneous velocity is represented by the uncertainty of the state model. In kinematic applications, this uncertainty is often variant and hard to be known in advance, a predefined process noise level of the state model is often not sufficiently accurate in the whole working time. Here, an adaptive Kalman filtering approach is employed to fix this problem. To verify the proposed approach, one static experiment and two dynamic experiments with different sampling intervals are performed, separately. All results demonstrate the validity and stability of the proposed approach.
Starting Page	762
Ending Page	771
Page Count	10
ISSN	17518822
Volume Number	14
e-ISSN	17518830
Issue Number	Issue 7, Sep (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-smt/14/7
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-smt.2018.5674
Journal	IET Science, Measurement & Technology
Publisher Date	2020-03-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adaptive Kalman Filter Adaptive Kalman Filtering Approach Data Fusion Problem Doppler Measurement Filtering Method in Signal Processing Global Positioning System GNSS Velocimeter Hybrid GNSS Velocimetry Approach Kalman Filter Radio Navigation And Direction Finding Satellite Communication System Satellite Navigation Sensor Fusion Stable Instantaneous Velocity Stand-alone Global Navigation Satellite System Receiver State Model State Space Method State-Space Model Time Difference Carrier Phase Approach
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electrical and Electronic Engineering

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