Abstract
High-precision positioning is critical for many Internet-of-Things (IoT) applications; however, most existing approaches are too expensive to be used in commercial products. A highly accurate differential global positioning system (DGPS) has not been widely used because of the difficulty in solving integer ambiguities in the single-frequency carrier phase. Multipath interference and receiver noise are the main reasons for limiting the DGPS accuracy and efficiency in solving integer ambiguities. In this article, we propose a combination of anti-multipath antennas and high-performance GPS receivers to effectively mitigate impairments due to multipath propagation and receiver noise. Furthermore, by exploiting more data available from high-performance GPS receivers, we can improve the efficiency of solving carrier-phase integer ambiguities. For applications in a smart snow blower, we installed two GPS receivers with a constant separation between them. The distance between the GPS receivers was used to verify the DGPS results. Furthermore, using the proposed DGPS technology, the smart snow blower can obtain a high-precision orientation estimation, with a standard deviation of 0.299 cm in positioning accuracy and 0.409° in orientation accuracy.
Recommended Citation
Y. Luo and Z. B. Weng and Y. Qi and L. Deng and W. Yu and F. Li and J. L. Drewniak and W. Zhuang and M. Miao and J. Huang, "Short-baseline High-precision DGPS for Smart Snow Blower," IEEE Internet of Things Journal, vol. 7, no. 6, pp. 5033 - 5041, article no. 8988153, Institute of Electrical and Electronics Engineers, Jun 2020.
The definitive version is available at https://doi.org/10.1109/JIOT.2020.2972746
Department(s)
Electrical and Computer Engineering
Keywords and Phrases
Anti-multipath antenna; Differential global positioning system (DGPS); Inertial navigation system (INS); Orientation estimation
International Standard Serial Number (ISSN)
2327-4662
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Jun 2020
