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OFDM-Based Carrier Phase Localization With Integer Ambiguity Resolution
IEEE AccessThis study introduces a two-stage Time Difference of Arrival (TDoA) localization method using OFDM signals with carrier-phase measurements. Unlike conventional methods, our approach uniquely resolves integer ambiguities in carrier-phase signals by ...
Jai Hyung Cho, Jie Hyun Lee
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Analysis and Simulations of LAMBDA Integer Ambiguity Resolution Algorithm [PDF]
Proceedings of the 2018 3rd International Conference on Control, Automation and Artificial Intelligence (CAAI 2018), 2018 In the data processing with carrier phase, how to obtain the ambiguity value of the carrier phase accurately and efficiently is an important problem in the precision positioning data processing.
Shuyan Ni, Naiping Cheng, Shengge Zhang
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Improving integer ambiguity resolution for GLONASS precise orbit determination
Journal of Geodesy, 2016 The frequency division multiple access adopted in present GLONASS introduces inter-frequency bias (IFB) at the receiver-end both in code and phase observables, which makes GLONASS ambiguity resolution rather difficult or even not available, especially for long baselines up to several thousand kilometers.
Liu, Y. +5 more
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GPS Solutions, 2017 Successful resolution of integer ambiguity over long baselines is a key to improve the accuracy of precise orbit determination for global navigation satellite system satellites. The satellite-induced code bias (SCB) found in BDS signals severely prevents
Tao Geng +4 more
semanticscholar +3 more sources
Precise Distributed Satellite Navigation: Differential GPS with Sensor-Coupling for Integer Ambiguity Resolution [PDF]
IEEE Aerospace Conference, 2023 Precise relative navigation is a critical enabler for distributed satellites to achieve new mission objectives impossible for a monolithic spacecraft. Carrier phase differential GPS (CDGPS) with integer ambiguity resolution (IAR) is a promising means of ...
Samuel Y. W. Low, Simone D'Amico
semanticscholar +1 more source
Integer ambiguity validation through machine learning for precise point positioning
Satellite NavigationThe discrimination test of ambiguity resolution, also known as ambiguity validation, is a vital procedure to quantify the reliability of Global Navigation Satellite System (GNSS) ambiguity-fixed solutions. Several well-known tests, including the R-ratio,
Jiang Guo, Jianghui Geng
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Undifferenced and uncombined GNSS time and frequency transfer with integer ambiguity resolution
Journal of Geodesy, 2023 Precise point positioning (PPP) has been a competitive global navigation satellite system (GNSS) technique for time and frequency transfer. However, the classical PPP is usually based on the ionosphere-free combination of dual-frequency observations ...
Xiaolong Mi +4 more
semanticscholar +1 more source
The analysis on time transfer of GPS/Galileo /BDS PPP with integer ambiguity resolution
Physica Scripta, 2023 GPS precise point positioning (PPP) approach has been considered for achieving time transfer for a long time. By virtue of GPS/Galileo/BDS FCB products, PPP model has the possibilities for changing phase ambiguities from ‘float’ value to ‘integer’ value.
W. Qin +4 more
semanticscholar +1 more source
Sequential Ambiguity Resolution Method for Poorly-Observed GNSS Data
Remote Sensing, 2021 Integer ambiguity resolution is required to obtain precise coordinates for the global navigation satellite system (GNSS). Poorly observed data cause unfixed integer ambiguity and reduce the coordinate accuracy.
Haiyang Li +3 more
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Indoor Carrier Phase Positioning Technology Based on OFDM System
Sensors, 2021 Carrier phase measurement is a ranging technique that uses the receiver to determine the phase difference between the received signal and the transmitted signal. Carrier phase ranging has a high resolution; thus, it is an important research direction for
Zhenyu Zhang, Shaoli Kang, Xiang Zhang
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