Zobrazeno 1 - 10
of 99
pro vyhledávání: '"Gethin Wyn Roberts"'
Autor:
Dongsheng Zhao, Qianxin Wang, Wang Li, Shuangshuang Shi, Yiming Quan, Craig M. Hancock, Gethin Wyn Roberts, Kefei Zhang, Yu Chen, Xin Liu, Zemin Hao, Shuanglei Cui, Xueli Zhang, Xing Wang
Publikováno v:
Remote Sensing, Vol 14, Iss 17, p 4255 (2022)
As a frequently-occurred phenomenon in the high-latitude region, ionospheric scintillations affect the stable service of the positioning navigation and timing service of the Global Navigation Satellite System (GNSS), calling for an urgent need of mon
Externí odkaz:
https://doaj.org/article/81fcccd2a7954cff949b12bc040d0816
Publikováno v:
Remote Sensing, Vol 13, Iss 14, p 2756 (2021)
PPP using Kalman filter typically takes half an hour to achieve high positioning precision, which is required for small movements detection. Many dataset gaps due to temporary GPS receiver signal loss challenge the feasibility of PPP in GPS applicati
Externí odkaz:
https://doaj.org/article/3aaa19c523d64e67b9681d390f3818cd
Publikováno v:
Cogent Engineering, Vol 5, Iss 1 (2018)
The work is aimed: (i) to propose a Joint Time-Frequency Analysis method for gear fault diagnosis by using the combined autoregressive model-based filtering and Reassigned Smoothed Pseudo Wigner-Ville Distribution (RSPWVD) methods; (ii) to investigat
Externí odkaz:
https://doaj.org/article/9ed8e659f321406cbda5fd9fb5bc1a9d
Publikováno v:
Remote Sensing, Vol 11, Iss 3, p 250 (2019)
The current cycle slip detection methods of Global Navigation Satellite System (GNSS) were mostly proposed on the basis of assuming the ionospheric delay varying smoothly over time. However, these methods can be invalid during active ionospheric peri
Externí odkaz:
https://doaj.org/article/1a4aa4e35f9744d99a84b3f5cb9ff5b7
Publikováno v:
Remote Sensing, Vol 10, Iss 12, p 2052 (2018)
Global Positioning System (GPS) has been used in many aerial and terrestrial high precision positioning applications. Multipath affects positioning and navigation performance. This paper proposes a convolutional neural network based carrier-phase mul
Externí odkaz:
https://doaj.org/article/0b7687b5c31a47a28a90ad1c0731ca29
Publikováno v:
Sensors, Vol 16, Iss 11, p 1929 (2016)
Twelve GPS Block IIF satellites, out of the current constellation, can transmit on three-frequency signals (L1, L2, L5). Taking advantages of these signals, Three-Carrier Ambiguity Resolution (TCAR) is expected to bring much benefit for ambiguity res
Externí odkaz:
https://doaj.org/article/d3bd5dbf653848578d2cb5e03453993a
Publikováno v:
Proceedings of the Institution of Civil Engineers - Structures and Buildings. 175:890-902
Vibration properties of civil structures, which are commonly analysed for damage detection, are affected by changing environmental and operational conditions, and most notably are subjected to bilinear effects from changing ambient temperature condit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94208c89bfd7dc38a509b449245068ea
https://doi.org/10.1680/jstbu.20.00024
https://doi.org/10.1680/jstbu.20.00024
Autor:
Dongsheng Zhao, Xueli Zhang, Wang Li, Qianxin Wang, Craig M. Hancock, Chendong Li, Gethin Wyn Roberts, Kefei Zhang
Publikováno v:
GPS Solutions. 27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::756b36c83af1b67ef19cd22d1a1283d5
https://doi.org/10.1007/s10291-023-01418-4
https://doi.org/10.1007/s10291-023-01418-4
PPP-derived tropospheric ZWD augmentation from local CORS network tested on bridge monitoring points
Publikováno v:
Advances in Space Research. 69:3633-3643
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62971f4ed3fc8dcf4a48e01cafb28475
https://doi.org/10.1016/j.asr.2022.02.054
https://doi.org/10.1016/j.asr.2022.02.054
Autor:
Dongsheng Zhao, Wang Li, Qianxin Wang, Xin Liu, Chendong Li, Craig M. Hancock, Gethin Wyn Roberts, Kefei Zhang
Publikováno v:
Advances in Space Research. 69:3435-3459
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::31874f1f61f3fc070f1150e6521cdf19
https://doi.org/10.1016/j.asr.2022.02.031
https://doi.org/10.1016/j.asr.2022.02.031