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PPP-RTK with Rapid Convergence Based on SSR Corrections and Its Application in Transportation

An, Xiangdong and Ziebold, Ralf and Lass, Christoph (2023) PPP-RTK with Rapid Convergence Based on SSR Corrections and Its Application in Transportation. Remote Sensing, 15 (19). Multidisciplinary Digital Publishing Institute (MDPI). doi: 10.3390/rs15194770. ISSN 2072-4292.

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Official URL: https://www.mdpi.com/2072-4292/15/19/4770


Real-time Kinematic (RTK) positioning provides centimeter-level positioning accuracy within several seconds, but it has to rely on a nearby base station. Although Precise Point Positioning (PPP) supplies precise positions with one receiver, its convergence time takes several tens of minutes, which makes PPP not well suited for real-time kinematic applications where a rapid convergence is required. PPP-RTK integrates the benefits of PPP and RTK, which actually is PPP augmented by a ground GNSS network. The satellite orbit, clock offsets, signal biases, ionospheric and tropospheric corrections are determined based on this GNSS network, modeled as state space information and transmitted to PPP users. By applying these State Space Representation (SSR) corrections, a real-time kinematic PPP-RTK approach is developed and implemented, which can instantly resolve the ambiguities to integers and realize rapid convergence. In a static scenario, it realized an instant ambiguity resolution and a rapid convergence within 2 s in more than 90% of 120 hourly sessions. The PPP-RTK has been applied and evaluated in a kinematic scenario on the highway. The horizontal positioning errors are almost lower than 0.1 m except for the time of passing through bridges. After passing bridges, the PPP-RTK successfully resolved ambiguities within 2 s in 90.6% of the cases and achieved convergence in horizontal within 5 s in more than 90% of the cases. The PPP-RTK with a precision of 0.1 m and rapid convergence of several seconds benefits the precise navigation of automobile on the highway, which will support the development of autonomous driving in future

Item URL in elib:https://elib.dlr.de/197693/
Document Type:Article
Title:PPP-RTK with Rapid Convergence Based on SSR Corrections and Its Application in Transportation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
An, XiangdongUNSPECIFIEDhttps://orcid.org/0000-0001-5190-9503UNSPECIFIED
Ziebold, RalfUNSPECIFIEDhttps://orcid.org/0000-0002-0488-6457UNSPECIFIED
Lass, ChristophUNSPECIFIEDhttps://orcid.org/0000-0001-9998-0632143813754
Date:29 September 2023
Journal or Publication Title:Remote Sensing
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Publisher:Multidisciplinary Digital Publishing Institute (MDPI)
Series Name:Special Issue: GNSS Advanced Positioning Algorithms and Innovative Applications
Keywords:precise point positioning; rapid convergence; state space representation; ambiguity resolution; vehicle transportation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Transport System
DLR - Research area:Transport
DLR - Program:V VS - Verkehrssystem
DLR - Research theme (Project):V - FuturePorts, R - Project HIGAIN [KNQ]
Location: Neustrelitz
Institutes and Institutions:Institute of Communication and Navigation > Nautical Systems
Deposited By: Ziebold, Ralf
Deposited On:06 Oct 2023 12:55
Last Modified:06 Oct 2023 12:55

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