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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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RANSAC-based instantaneous real-time kinematic positioning with GNSS triple-frequency signals in urban areas
The demand for high-precision positioning has risen substantially in modern urban settings. In that regard, Global Navigation Satellite Systems...
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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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Real-time GNSS triple-frequency cycle slip detection using three optimal linear combinations
Triple-frequency global navigation satellite systems (GNSS) observations arise new benefits in GNSS data processing, particularly in the carrier...
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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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Assessment of overlap** triple-frequency BDS-3/BDS-2/INS tightly coupled integration model in kinematic surveying
The China BeiDou Navigation Satellite System (BDS-3) is recognized for its advantages compared to BDS-2. However, the enhancement of performance...
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Modeling and predicting inter-frequency clock bias of BDS-2 GEO, IGSO and MEO satellites for triple-frequency precise point positioning
Due to inter-frequency clock bias (IFCB), the dual-frequency precise clock products cannot be directly applied to BDS-2 triple-frequency precise...
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Triple-frequency ambiguity resolution for GPS/Galileo/BDS between long-baseline network reference stations in different ionospheric regions
Fast and reliable ambiguity resolution (AR) between continuously operating reference stations (CORS) is indispensable in network real-time kinematic...
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A New AR Method Using BDS Triple-Frequency Observation
BeiDou navigation satellite system transmits triple-frequency signals. This paper reviews the disadvantages of the traditional least-squares...
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Benefits of BDS-3 B1C/B1I/B2a triple-frequency signals on precise positioning and ambiguity resolution
BDS-3 currently has 28 operational satellites in orbit, of which 27 IGSO/MEO satellites provide open services on five frequencies simultaneously. In...
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Estimation and analysis of GPS inter-fequency clock biases from long-term triple-frequency observations
Usually, the difference between the satellite clocks computed with L1/L2 and clocks computed with L1/L5 is defined as inter-frequency clock bias...
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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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GNSS Constellations and Signals
This chapter is an overview of GNSS constellations and signals. It focuses on highlighting the important characteristics of constellations with...
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An uncombined triple-frequency user implementation of the decoupled clock model for PPP-AR
Precise point positioning (PPP) has proved its capacity to provide centimetre-level position solutions in open sky environments. However, the...
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Understanding the characteristic of GLONASS inter-frequency clock bias using both FDMA and CDMA signals
Currently, four GLONASS-M+ satellites and two GLONASS-K1 satellites transmit CDMA signals on the G3 frequency. It is important to understand the...
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Triple-Frequency Radar Retrievals
With triple frequency radars becoming more and more popular both at ground-based facilities and on airborne platforms and with the prospect of a...
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Monitoring of drill bit wear using sound and vibration signals analysis recorded during rock drilling operations
The drill bit has significant importance as a tool for breaking rocks in many industries such as mining, petroleum, and civil engineering. Its...
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Absolute field calibration of receiver antenna phase center models for GPS/BDS-3 signals
With the advancement of multi-GNSS systems, the field calibration of GNSS receiver antennas has been updated at Wuhan University. Benefiting from the...
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GPS + Galileo + BeiDou precise point positioning with triple-frequency ambiguity resolution
Along with the rapid development of GNSS, not only BeiDou, but also Galileo, and the newly launched GPS satellites can provide signals on three...
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Mitigation of multipath effects in multi-GNSS and multi-frequency precise point positioning with multipath hemispherical maps
To mitigate multipath effects in multi-GNSS and multi-frequency precise point positioning (PPP), we constructed multi-GNSS and multi-frequency...
