Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Doppler Positioning Using Multi-Constellation LEO Satellite Broadband Signals as Signals of Opportunity

    Access Status
    In process
    Authors
    Allahvirdizadeh, Amir
    El-Mowafy, Ahmed
    Wang, Kan
    Date
    2025
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Allahvirdizadeh, A. and El-Mowafy, A. and Wang, K. 2025. Doppler Positioning Using Multi-Constellation LEO Satellite Broadband Signals as Signals of Opportunity. Navigation. 72 (2).
    Source Title
    Navigation
    DOI
    10.33012/navi.691
    Additional URLs
    https://navi.ion.org/
    Faculty
    Faculty of Science and Engineering
    School
    School of Earth and Planetary Sciences (EPS)
    Funding and Sponsorship
    DP240101710-ARC
    URI
    http://hdl.handle.net/20.500.11937/97535
    Collection
    • Curtin Research Publications
    Abstract

    This paper investigates the potential of signals of opportunity for positioning using broadband low Earth orbit constellations. We developed analytical absolute and differential models based on Doppler-shift observations from multi-constellation satellite bursts across various frequency ranges. Owing to the unavailability of multi-constellation broadband receivers, simulations were conducted with the application of two primary restrictions common for these satellites: a 30° elevation mask angle and a 15-s intermittency for observations. Signal attenuation factors were modeled, indicating that free space loss was the dominant factor whereas cloud and fog losses were minimal. The accuracy of absolute static positioning, considering the aforementioned broadband restrictions, reached 4.32 m. The kinematic receiver showed similar trends, with a degraded accuracy of 4.83 m. Tests in urban areas revealed significant accuracy degradation to approximately 10 m. However, the differential model significantly improved kinematic positioning accuracy, achieving promising sub-meter levels even with a limited number of satellites.

    Related items

    Showing items related by title, author, creator and subject.

    • Environmental spatial data within dense tree cover: exploiting multi-frequency GNSS signals to improve positional accuracy
      Cole, B.; Awange, Joseph ; Saleem, Ashty (2020)
      Environmental monitoring tasks over large spatial coverage often necessitate acquiring sample/reference positions using the global navigation satellite systems in order to optimise operational costs. Often, such tasks ...
    • Leveraging Future LEO Constellations for the Precise Orbit Determination of Lower Small Satellites
      Allahvirdizadeh, Amir ; El-Mowafy, Ahmed ; Wang, K. (2024)
      Low earth orbit (LEO) constellations offer possible significant augmentation to the Global Navigation Satellite Systems (GNSS) for positioning, navigation, and timing (PNT) applications. This study explores a new application ...
    • Triple Frequency precise point positioning with multi-constellation GNSS
      Deo, Manoj; El-Mowafy, Ahmed (2017)
      The availability of signals on three or more frequencies from multiple GNSS constellations provides opportunities for improving precise point positioning (PPP) convergence time and accuracy, compared to when using ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.