A CSI-Based Indoor Positioning System Using Single UWB Ranging Correction Article Swipe
Keliu Long
,
Darryl Franck Nsalo Kong
,
Kun Zhang
,
Chuan Tian
,
Chong Shen
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/s21196447
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/s21196447
A fingerprint-based localization system is an economic way to solve an indoor positioning problem. However, the traditional off-line fingerprint collection stage is a time-consuming and laborious process which limits the use of fingerprint-based localization systems. In this paper, based on ubiquitous Wireless Fidelity (Wi-Fi) equipment and a low-cost Ultra-Wideband (UWB) ranging system (with only one UWB anchor), a ready-to-use indoor localization system is proposed to realize long-term and high-accuracy indoor positioning. More specifically, in this system, it is divided into two stages: (1) an initial stage, and (2) a positioning stage. In the initial stage, an Inertial Measure Unit (IMU) is used to calculate the position using Pedestrian Dead Reckon (PDR) algorithm within a preset number of steps, and the location-related fingerprints are collected to train a Convolutional Neural Network (CNN) regression model; simultaneously, in order to make the UWB ranging system adapt to the Non-Line-of-Sight (NLoS) environment, the increments of acceleration and angular velocity in IMU and the increments of single UWB ranging measures are correlated to pre-train a Supported Vector Regression (SVR). After reaching the threshold of time or step number, the system is changed into a positioning stage, and the CNN predicts the position calibrated by corrected UWB ranging. At last, a series of practical experiments are conducted in the real environment; the experiment results show that, due to the corrected UWB ranging measures calibrating the CNN parameters in every positioning period, this system has stable localization results in a comparative long-term range. Additionally, it has the advantages of stability, low cost, anti-noise, etc.
Related Topics
Concepts
Ranging
Inertial measurement unit
Non-line-of-sight propagation
Computer science
Indoor positioning system
Fingerprint (computing)
Real-time computing
Ultra-wideband
Fidelity
Positioning system
Artificial intelligence
Inertial navigation system
Wireless
Computer vision
Accelerometer
Engineering
Inertial frame of reference
Telecommunications
Structural engineering
Physics
Node (physics)
Quantum mechanics
Operating system
Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/s21196447
- https://www.mdpi.com/1424-8220/21/19/6447/pdf?version=1632738975
- OA Status
- gold
- Cited By
- 19
- References
- 51
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3201912782
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
-
https://openalex.org/W3201912782Canonical identifier for this work in OpenAlex
- DOI
-
https://doi.org/10.3390/s21196447Digital Object Identifier
- Title
-
A CSI-Based Indoor Positioning System Using Single UWB Ranging CorrectionWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2021Year of publication
- Publication date
-
2021-09-27Full publication date if available
- Authors
-
Keliu Long, Darryl Franck Nsalo Kong, Kun Zhang, Chuan Tian, Chong ShenList of authors in order
- Landing page
-
https://doi.org/10.3390/s21196447Publisher landing page
- PDF URL
-
https://www.mdpi.com/1424-8220/21/19/6447/pdf?version=1632738975Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
- OA URL
-
https://www.mdpi.com/1424-8220/21/19/6447/pdf?version=1632738975Direct OA link when available
- Concepts
-
Ranging, Inertial measurement unit, Non-line-of-sight propagation, Computer science, Indoor positioning system, Fingerprint (computing), Real-time computing, Ultra-wideband, Fidelity, Positioning system, Artificial intelligence, Inertial navigation system, Wireless, Computer vision, Accelerometer, Engineering, Inertial frame of reference, Telecommunications, Structural engineering, Physics, Node (physics), Quantum mechanics, Operating systemTop concepts (fields/topics) attached by OpenAlex
- Cited by
-
19Total citation count in OpenAlex
- Citations by year (recent)
-
2025: 4, 2024: 6, 2023: 2, 2022: 7Per-year citation counts (last 5 years)
- References (count)
-
51Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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