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Article
Real-time GNSS tropospheric delay estimation with a novel global random walk processing noise model (GRM)
Accurate modeling of tropospheric delays is crucial for the global navigation satellite system (GNSS), which finds extensive applications in early warning systems of natural hazards and extreme weather forecas...
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Article
TropNet: a deep spatiotemporal neural network for tropospheric delay modeling and forecasting
Water vapor plays an essential role in regulating the earth’s weather and climate, and the tropospheric delays caused by water vapor are one of the error sources in space geodetic techniques. Attributing to th...
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Article
Rapid calibration of HY-2A satellite-borne microwave radiometer using coastal GNSS observations
Satellite-borne microwave radiometers provide wet tropospheric correction (WTC) for altimetry observations, which is critical to high-accuracy sea surface height (SSH) measurements. However, it was reported th...
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Article
Initial assessment of the COMPASS/BeiDou-3: new-generation navigation signals
The successful launch of five new-generation experimental satellites of the China’s BeiDou Navigation Satellite System, namely BeiDou I1-S, I2-S, M1-S, M2-S, and M3-S, marks a significant step in expanding Bei...
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Article
Improving BeiDou real-time precise point positioning with numerical weather models
Precise positioning with the current Chinese BeiDou Navigation Satellite System is proven to be of comparable accuracy to the Global Positioning System, which is at centimeter level for the horizontal componen...
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Article
Real-time retrieval of precipitable water vapor from GPS and BeiDou observations
The rapid development of the Chinese BeiDou Navigation Satellite System (BDS) brings a promising prospect for the real-time retrieval of zenith tropospheric delays (ZTD) and precipitable water vapor (PWV), whi...
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Article
Atmospheric modeling for co-located VLBI antennas and twin telescopes
In the next generation VLBI network, the VLBI global observing system (VGOS), there will be several twin telescopes, i.e. stations equipped with a pair of VLBI telescopes with identical design. In this work we...