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5G assisted GNSS precise point positioning ambiguity resolution
This study proposes a model using 5G time-of-arrival data to assist global navigation satellite system precise point positioning ambiguity...
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All-frequency IGS phase clock/bias product combination to improve PPP ambiguity resolution
Satellite product combination has been a major effort for the International GNSS Service Analysis Center Coordinator to improve the robustness of...
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A sequential ambiguity selection strategy for partial ambiguity resolution during RTK positioning in urban areas
Usually, it is difficult to implement integer ambiguity resolution within a short amount of time for GNSS positioning in urban areas due to the...
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GPS/Galileo/BDS phase bias stream from Wuhan IGS analysis center for real-time PPP ambiguity resolution
While few phase bias streams are available from the IGS Real-time Service Phase, such products are essential to enable PPP ambiguity resolution....
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Ambiguity resolution for smartphone GNSS precise positioning: effect factors and performance
With the availability of Global Navigation Satellite Systems raw measurements in smartphones, high-precision positioning using smartphones has become...
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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 of Beidou-2 flex power and its impact on precise point positioning with ambiguity resolution
The modernization of the Global Navigation Satellite Systems (GNSS) has brought many new features and capabilities, one of which is programmable...
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Bias-constrained integer least squares estimation: distributional properties and applications in GNSS ambiguity resolution
To accommodate the presence of bounded biases in mixed-integer models, Khodabandeh (
2022 ) extended integer estimation theory by introducing a new...
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Adaptive Kalman filter based on integer ambiguity validation in moving base RTK
In high-precision dynamic positioning, it is necessary to ensure the positioning accuracy and reliability of the navigation system, especially for...
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GPS phase center variation modeling using ambiguity-fixed carrier phase observations from low Earth orbit satellites
Precise knowledge of the antenna phase center variations (PCVs) of global navigation satellite system (GNSS) is indispensable for GNSS high-precision...
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Realization and validation of GLONASS triple-frequency PPP ambiguity resolution with new CDMA L3 signals
Integer ambiguity resolution considerable improves the performance of precise point positioning (PPP). With the popularity of multi-frequency...
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GNSS observable-specific phase biases for all-frequency PPP ambiguity resolution
An unwritten rule to resolve GNSS ambiguities in precise point positioning (PPP-AR) is that users should follow faithfully the frequency choices and...
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Effect of ambiguity resolution on the draconitic errors in sub-daily GPS position estimates
Spurious draconitic errors with periods of (351.4/N) days are detected in GPS position time series. This study assesses the performance of ambiguity...
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Calibrating receiver-type-dependent wide-lane uncalibrated phase delay biases for PPP integer ambiguity resolution
Wide-lane (WL) uncalibrated phase delay (UPD) is usually derived from Melbourne–Wübbena (MW) linear combination and is a prerequisite in Global...
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Real-time multi-GNSS precise point positioning with ambiguity resolution based on the BDS-3 global short-message communication function
Real-time precise point positioning (PPP) with ambiguity resolution (PPP-AR) has been realized with the provision of various precise correction...
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Toward BDS/Galileo/GPS/QZSS triple-frequency PPP instantaneous integer ambiguity resolutions without atmosphere corrections
Multi-frequency precise point positioning (PPP) has drawn attention along with the modernization of the Global Navigation Satellite Systems. There...
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GNSS integer ambiguity posterior probability calculation with controllable accuracy
Integer ambiguity resolution (IAR) is one of the key techniques in GNSS high precise positioning. However, an overlooked incorrect integer ambiguity...
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Improving cycle slip detection in ambiguity-fixed precise point positioning for kinematic LEO orbit determination
The global navigation satellite system (GNSS) is a crucial technical tool used for precisely determining the orbit of low earth orbit (LEO)...
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Assessing partial ambiguity resolution and WZTD-constraint multi-frequency RTK in an urban environment using new BDS signals
BeiDou Navigation Satellite System (BDS) began to provide global services of positioning, navigation, and timing on July 31, 2020. The Real-time...
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Comparison and evaluation of carrier phase PPP and single difference time transfer with multi-GNSS ambiguity resolution
A time transfer model with Global Navigation Satellite System (GNSS) carrier phase using precise point positioning (PPP), integer PPP (IPPP),...
