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LSTM-based clock synchronization for satellite systems using inter-satellite ranging measurements
The inter-satellite link (ISL) has been received increasing attention, as it is a potential way to achieve autonomous clock synchronization for...
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Improved short-term stability for real-time GNSS satellite clock estimation with clock model
As a basic service of global navigation satellite system (GNSS), the timing technique tends to be processed based on precise point positioning (PPP)...
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Estimating GNSS satellite clock error to provide a new final product and real-time services
A method is introduced to directly estimate the model coefficients of global navigation satellite system (GNSS) satellite clock errors using global...
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A composite clock for robust time–frequency signal generation system onboard a navigation satellite
This research designs a robust time–frequency signal generation system based on the composite atomic clock onboard a navigation satellite, which...
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A computationally efficient prior quality control approach for multi-GNSS real-time satellite clock estimation
The quality control of multi-global navigation satellite system (multi-GNSS) real-time satellite clock estimation is time-consuming since mutual...
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Centimeter-level clock synchronization and space-borne timescale generation for BDS-3 using inter-satellite link measurements
Because modernized global navigation satellite systems (GNSSs) carry high-performance atomic clocks onboard, a new problem has arisen regarding...
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Enhancing satellite clock bias prediction in BDS with LSTM-attention model
Satellite clock bias (SCB) is a critical factor influencing the accuracy of real-time precise point positioning. Nevertheless, the utilization of...
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Improved method for the GPS high-precision real-time satellite clock error service
The real-time service (RTS) of satellite clock offsets is one of the main routine tasks for real-time precise point positioning (PPP). The quadratic...
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Improving undifferenced precise satellite clock estimation with BDS-3 quad-frequency B1I/B3I/B1C/B2a observations for precise point positioning
Estimates of satellite clock offsets typically employ dual-frequency undifferenced (UD) ionospheric-free (IF) observations from global network. The...
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Realizing rapid re-convergence in multi-GNSS real-time satellite clock offset estimation with dual-thread integer ambiguity resolution
Real-time satellite clock offsets are key in realizing real-time precise point positioning (PPP). Typically, tens of minutes are required for...
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Research on modeling and predicting of BDS-3 satellite clock bias using the LSTM neural network model
In the Global Navigation Satellite System (GNSS), the satellite clock bias (SCB) is one of the sources of ranging error, and its ability to predict...
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Multi-GNSS clock combination with consideration of inconsistent nonlinear variation and satellite-specific bias
As part of the International GNSS Service (IGS) multi-GNSS Pilot Project (MGEX), precise orbit and clock products for multi-GNSS constellations have...
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On the satellite clock datum stability of RT-PPP product and its application in one-way timing and time synchronization
In real-time precise point positioning (RT-PPP), PPP one-way timing is used to steer local oscillators, but the timing performance could be...
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Between-satellite ambiguity resolution based on preliminary GNSS orbit and clock information using a globally applied ambiguity clustering strategy
The use of undifferenced (UD) processing schemes of GNSS measurements is becoming more and more popular for the generation of global network...
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Characteristics analysis and prediction of Low Earth Orbit (LEO) satellite clock corrections by using least-squares harmonic estimation
With the vigorous development of Low Earth Orbit (LEO) satellite constellations, the concept of LEO-enhanced GNSS is proposed and quickly becomes the...
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GPS satellite clock estimation using global atomic clock network
We report the GPS satellite clock estimation using 20 globally distributed receivers with an external hydrogen maser atomic clock. By applying...
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COMPASSO mission and its iodine clock: outline of the clock design
One of the limiting factors for GNSS geolocation capabilities is the clock technology deployed on the satellites and the knowledge of the satellite...
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Prospects of GENESIS and Galileo joint orbit and clock determination
The European Space Agency (ESA) is preparing a satellite mission called GENESIS to be launched in 2027 as part of the FutureNAV program. GENESIS...
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Simultaneous estimation of inter-frequency clock biases and clock offsets with triple-frequency GPS data: undifferenced and uncombined methodology and impact analysis
Nowadays, multi-frequency signals have been putting forward good prospects for improving the application performances of the rapid-develo** Global...
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A method for precisely predicting satellite clock bias based on robust fitting of ARMA models
The precise satellite clock bias prediction is critical in improving the positioning, navigation and timing (PNT) service capabilities of the global...
