Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/92764
DC Field | Value | Language |
---|---|---|
dc.contributor | Department of Aeronautical and Aviation Engineering | en_US |
dc.creator | Ng, HF | en_US |
dc.creator | Zhang, G | en_US |
dc.creator | Yang, KY | en_US |
dc.creator | Yang, SX | en_US |
dc.creator | Hsu, LT | en_US |
dc.date.accessioned | 2022-05-16T09:07:37Z | - |
dc.date.available | 2022-05-16T09:07:37Z | - |
dc.identifier.uri | http://hdl.handle.net/10397/92764 | - |
dc.language.iso | en | en_US |
dc.publisher | Pergamon Press | en_US |
dc.rights | © 2020 COSPAR. Published by Elsevier Ltd. All rights reserved. | en_US |
dc.rights | ©2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ | en_US |
dc.rights | The following publication Ng, H. F., Zhang, G., Yang, K. Y., Yang, S. X., & Hsu, L. T. (2020). Improved weighting scheme using consumer-level GNSS L5/E5a/B2a pseudorange measurements in the urban area. Advances in Space Research, 66(7), 1647-1658 is available at https://doi.org/10.1016/j.asr.2020.06.002. | en_US |
dc.subject | GNSS | en_US |
dc.subject | GNSS L5-band | en_US |
dc.subject | Multipath | en_US |
dc.subject | Urban canyon | en_US |
dc.title | Improved weighting scheme using consumer-level GNSS L5/E5a/B2a pseudorange measurements in the urban area | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 1647 | en_US |
dc.identifier.epage | 1658 | en_US |
dc.identifier.volume | 66 | en_US |
dc.identifier.issue | 7 | en_US |
dc.identifier.doi | 10.1016/j.asr.2020.06.002 | en_US |
dcterms.abstract | The accurate global navigation satellite system (GNSS) positioning in the dense urban areas is still a challenge, especially for low-cost receivers. The multipath effects and non-line-of-sight (NLOS) receptions from surrounding buildings will significantly degrade the positioning performance. Due to the increasing channel number in GNSS chip, the low-cost receiver tends to be capable of acquiring multi-frequency signals, including the new L5-band signal. Because of the higher chipping rate, the GNSS L5-band measurement is less affected by the multipath effect, whereas the measurement number is limited in the current stage. On the contrary, the availability of the conventional L1-band measurement is sufficient to achieve a good dilution of precision (DOP). Based on the complementary characteristics, a GNSS L1/L5 bands integrated positioning algorithm is developed in this study to improve the positioning performance in urban areas. A modified weighting model based on carrier-to-noise ratio and satellite elevation angle is employed to assign proper weighting between L1-band and L5-band measurements. Meanwhile, the dMP5 feature from dual-frequency measurement and the consistency check algorithm are employed to detect and exclude outliers, which are possibly NLOS receptions. Experimental results and analyses indicate that the developed DFE-CCWLS method can significantly improve the positioning accuracy, achieving the root-mean-square error less than 10 m for most of the urban scenarios. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Advances in space research, 1 Oct. 2020, v. 66, no. 7, p. 1647-1658 | en_US |
dcterms.isPartOf | Advances in space research | en_US |
dcterms.issued | 2020-10-01 | - |
dc.identifier.scopus | 2-s2.0-85087307126 | - |
dc.identifier.eissn | 0273-1177 | en_US |
dc.description.validate | 202205 bckw | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | AAE-0072 | - |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | The Hong Kong Polytechnic University | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 42722358 | - |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
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Ng_Improved_Weighting_Scheme.pdf | Pre-Published version | 2.3 MB | Adobe PDF | View/Open |
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