High precision positioning algorithm based on carrier phase and time of arrival

Carrier phase positioning technology is widely used in global navigation satellite systems (GNSS) but not applied to wireless orthogonal frequency division multiplex (OFDM) systems. Carrier phase technology has a high resolution, which can improve the positioning accuracy of wireless cellular networ...

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Vydané v:IET communications Ročník 15; číslo 20; s. 2575 - 2585
Hlavní autori: Zhang, Zhenyu, Kang, Shaoli, Zhang, Xiang
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Stevenage John Wiley & Sons, Inc 01.12.2021
Wiley
Predmet:
Accuracy
Algorithms
Ambiguity resolution (mathematics)
Bandwidths
Cellular communication
Fourier transforms
Global navigation satellite system
Mobile radio systems
Modulation and coding methods
Orthogonal Frequency Division Multiplexing
Radionavigation and direction finding
Satellite communication systems
Signal processing and detection
Wireless networks
ISSN:1751-8628, 1751-8636
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Shrnutí:Carrier phase positioning technology is widely used in global navigation satellite systems (GNSS) but not applied to wireless orthogonal frequency division multiplex (OFDM) systems. Carrier phase technology has a high resolution, which can improve the positioning accuracy of wireless cellular networks. Applying the carrier phase to a wireless mobile positioning system has some problems, such as continuous phase tracking, accurate integer ambiguity resolution, positioning errors caused by non‐line‐of‐sight (NLOS) and so forth. This paper offers a positioning technique combining the time‐of‐arrival (TOA) and carrier phase to solve the above problems. Based on Bayesian theory, a two‐step position estimator is introduced in our scheme to solve the terminal position. Besides, an NLOS identification and suppression scheme is proposed to enhance the robustness of the algorithm. Experiments show that even in the NLOS environment, the joint positioning algorithm using TOA and carrier phase can effectively improve the positioning accuracy.
Bibliografia:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 14
ISSN:1751-8628
1751-8636
DOI:10.1049/cmu2.12297