Results 11 to 20 of about 5,763,393 (289)
Analysis of BDS-3 PPP-B2b Positioning and Time Transfer Service
Remote Sensing, 2022 With the completion of the BeiDou global navigation satellite system (BDS-3), the BeiDou Navigation Satellite System Signal In Space Interface Control Document Precise Point Positioning Service Signal PPP-B2b (Version 1.0) was officially announced, and ...
Runzhi Zhang +9 more
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Frontiers in Physics, 2023 In this paper, a high-precision bidirectional time-transfer system over a single fiber based on wavelength-division multiplexing and time-division multiplexing (SFWDM-TDM) is proposed, which combines the advantages of wavelength-division multiplexing and
Xinxing Guo +12 more
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Remote Sensing, 2022 Galileo satellites can broadcast signals on five frequencies, namely E1, E5A, E5B, E5 (A+B), and E6. The multi-frequency integration has become an emerging trend in Global Navigation Satellite System (GNSS) data processing.
Zhehao Zhang, Lin Pan
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An Interstation Undifferenced Real-Time Time Transfer Method with Refined Modeling of Receiver Clock
Remote Sensing, 2023 Due to their advantages of high measurement accuracy and wide coverage, global navigation satellite systems (GNSSs) can carry out long-distance time transfers, among which the precise point positioning (PPP) method is widely used.
Dong Lyu +5 more
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Remote Sensing, 2021 Single-frequency (SF) receivers are much cheaper than that of dual-frequency (DF). Even though DF precise point positioning (PPP) is nowadays applied in the time community, the cost of equipment is one of the key considerations for time users ...
Xia Xiao +4 more
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Frontiers in Earth Science, 2023 Determination of the Earth’s gravity field and geopotential value is one of the fundamental topics in physical geodesy. Traditional terrestrial gravity and precise leveling measurements can be used to determine the geopotential values at a local or ...
Mohammad Bagherbandi +4 more
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Remote Sensing, 2020 In high-precision GPS precise point positioning (PPP) time transfer, errors caused by the effect of ionosphere delay have to be corrected. Usually the ionosphere-free combinations of the pseudo code and the carrier phase is used in GPS PPP data ...
Haiyan Yang +4 more
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A BDGIM-Based Phase-Smoothed Pseudorange Algorithm for BDS-3 High-Precision Time Transfer
Applied Sciences, 2022 Single point positioning (SPP) can meet the requirements of the majority of real-time time transfer applications. Meanwhile, a single-frequency (SF) receiver is cheaper than a dual-frequency receiver.
Jian Tang, Daqian Lyu, Fangling Zeng
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Retirement, intergenerational time transfers, and fertility [PDF]
European Economic Review, 2020 Abstract Retired parents might invest time in their adult children by providing childcare. Such intergenerational time transfers can have important implications for family decisions. This paper estimates the effects of parental retirement on the fertility of their adult children.
Eibich, Peter, Siedler, Thomas
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Transfer learning for time series classification [PDF]
, 2018 Transfer learning for deep neural networks is the process of first training a base network on a source dataset, and then transferring the learned features (the network's weights) to a second network to be trained on a target dataset.
Fawaz, Hassan Ismail +4 more
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