A New Inter-Satellite Ranging Method Based on Pseudo-Range and Dual-Frequency Carrier Phase

Xiang, Bohong; Yan, Feng; Zhang, Yueyue; Shen, Fei; Xia, Weiwei; Shen, Lianfeng

doi:10.1109/wcsp.2019.8928144

Cited by 5 publications

(6 citation statements)

References 13 publications

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“…Most recent works focus on carrier ranging methods assisted by pseudo-random code ranging, which allows higher precision range values. For example, [110] proposed a pseudo-code-assisted carrier ranging algorithm, which is the combination of pseudo-range and dual-frequency carrier phase ranging methods. In [111], the impact of the frequency selection on the ranging accuracy was analyzed.…”

Section: ) Inter-satellite Ranging Based On Rf Signalsmentioning

confidence: 99%

Architectures and Synchronization Techniques for Distributed Satellite Systems: A Survey

et al. 2022

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Cohesive Distributed Satellite Systems (CDSSs) is a key enabling technology for the future of remote sensing and communication missions. However, they have to meet strict synchronization requirements before their use is generalized. When clock or local oscillator signals are generated locally at each of the distributed nodes, achieving exact synchronization in absolute phase, frequency, and time is a complex problem. In addition, satellite systems have significant resource constraints, especially for small satellites, which are envisioned to be part of the future CDSSs. Thus, the development of precise, robust, and resource-efficient synchronization techniques is essential for the advancement of future CDSSs. In this context, this survey aims to summarize and categorize the most relevant results on synchronization techniques for Distributed Satellite Systems (DSSs). First, some important architecture and system concepts are defined. Then, the synchronization methods reported in the literature are reviewed and categorized. This article also provides an extensive list of applications and examples of synchronization techniques for DSSs in addition to the most significant advances in other operations closely related to synchronization, such as inter-satellite ranging and relative position. The survey also provides a discussion on emerging data-driven synchronization techniques based on Machine Learning (ML). Finally, a compilation of current research activities and potential research topics is proposed, identifying problems and open challenges that can be useful for researchers in the field.

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Section: ) Inter-satellite Ranging Based On Rf Signalsmentioning

confidence: 99%

Architectures and Synchronization Techniques for Distributed Satellite Systems: A Survey

et al. 2022

View full text Add to dashboard Cite

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“…Most recent works focus on carrier ranging methods assisted by pseudo-random code ranging, which allows higher precision range values. For example, [109] proposed a pseudo-code-assisted carrier ranging algorithm, which is the combination of pseudo-range and dual-frequency carrier phase ranging methods. In [110], the impact of the frequency selection on the ranging accuracy was analyzed.…”

Section: ) Inter-satellite Ranging Based On Rf Signalsmentioning

confidence: 99%

Architectures and Synchronization Techniques for Distributed Satellite Systems: A Survey

Marrero¹,

Duncan²,

Querol³

et al. 2022

Preprint

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CDSS is a key enabling technology for the future of remote sensing and communication missions. However, they have to meet strict synchronization requirements before their use is generalized. When clock or local oscillator signals are generated locally at each of the distributed nodes, achieving exact synchronization in absolute phase, frequency, and time is a complex problem. In addition, satellite systems have significant resource constraints, especially for small satellites, which are envisioned to be part of the future CDSS. Thus, the development of precise, robust, and resource-efficient synchronization techniques is essential for the advancement of future CDSS. In this context, this survey aims to summarize and categorize the most relevant results on synchronization techniques for DSS. First, some important architecture and system concepts are defined. Then, the synchronization methods reported in the literature are reviewed and categorized. This article also provides an extensive list of applications and examples of synchronization techniques for DSS in addition to the most significant advances in other operations closely related to synchronization, such as inter-satellite ranging and relative position. The survey also provides a discussion on emerging data-driven synchronization techniques based on ML. Finally, a compilation of current research activities and potential research topics is proposed, identifying problems and open challenges that can be useful for researchers in the field.

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“…A new type of algorithm, named recursive LS parameter estimation methods, is also used for integrating the carrier phase observation and pseudorange, which has constructed a cost function to integrate typical measurements and requires prior accuracy information. The LS integrating method has designed the observation form for the raw measurements as Equation (12).…”

Section: Double-epochs Least-squares Fusion Algorithmmentioning

confidence: 99%

“…This manuscript enhanced the DELS by adding epoch at one-time filtering, which forms a new virtual observation as illustrated in Equation ( 25), whose variance-covariance matrix information has the same calculation method as that of Equation ( 15) but an unequal measure because the size and value of Equation ( 23) are both different from that of Equation (12).…”

Section: Multi-epochs Least-squares Fusion Algorithmmentioning

confidence: 99%

“…Thus, forming a new type of GNSS observation based on integrating carrier phase observation and pseudorange is critical for GNSS (Global Navigation Satellite System) due to the ambiguity of the carrier phase and the high noise of the pseudorange [10]. The technology can absorb the advantages of the typical GNSS measurements, without ambiguity and high precision, and thereby forming a new pseudorange to aid cycle slip detection and repair [11], fixing ambiguity [12] and improving positioning accuracy [13]. Hatch [7] firstly designed a smoother on the basis that the variation between the two observations is equal within a period, with two main issues: (i) how to determine the smoothed pseudorange of first epoch and the smoothing time, and (ii) that it neglects the error sources, such as ionospheric variations and multipath at the period [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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A Novel Dynamical Filter Based on Multi-Epochs Least-Squares to Integrate the Carrier Phase and Pseudorange Observation for GNSS Measurement

Gao

Psimoulis

et al. 2020

Remote Sensing

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The high noise of pseudorange and the ambiguity of carrier phase observation restrain the GNSS (Global Navigation Satellite System) application in military, industrial, and agricultural, to name a few. Thus, it is crucial for GNSS technology to integrate the pseudorange and carrier phase observations. However, the traditional method proposed by Hatch has obtained only a low convergence speed and precision. For higher convergence speed and precision of the smoothed pseudorange, aiming to improve positioning accuracy and expand the application of GNSS, we introduced a new method named MELS (Multi-Epochs Least-Squares) that considered the cross-correlation of the estimating parameters inspired by DELS (Double-Epochs Least-Square). In this study, the ionospheric delay was compensated, and so its impact was limited to the performance of the filters, and then exploited the various filters to integrate carrier phase observation and pseudorange. We compared the various types of Hatch’s filter and LS (Least-Square) methods using simulation datasets, which confirmed that the types of LS method provided a smaller residual error and a faster convergence speed than Hatch’s method under various precisions of raw pseudorange. The experimental results from the measured GNSS data showed that LS methods provided better performance than Hatch’s methods at E and U directions and a lower accuracy at N direction. Nevertheless, the types of LS method and Hatch’s methods improved about 12% and 9–10% at the 3D direction, respectively, which illustrated the accumulating improvement at the enhanced directions was more than the decreased direction, proving that the types of LS method resulted to better performance than the Hatch’s filters. Additionally, the curve of residual and precision based on various LS methods illustrated that the MELS only provided a millimeter accuracy difference compared with DELS, which was proved by the simulated and measured GNSS datasets.

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A New Inter-Satellite Ranging Method Based on Pseudo-Range and Dual-Frequency Carrier Phase

Cited by 5 publications

References 13 publications

Architectures and Synchronization Techniques for Distributed Satellite Systems: A Survey

Architectures and Synchronization Techniques for Distributed Satellite Systems: A Survey

Architectures and Synchronization Techniques for Distributed Satellite Systems: A Survey

A Novel Dynamical Filter Based on Multi-Epochs Least-Squares to Integrate the Carrier Phase and Pseudorange Observation for GNSS Measurement

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