Design and validation of probes and sensors for the characterization of magneto-ionic radio wave propagation on Near Vertical Incidence Skywave paths

Ben A. Witvliet, Rosa M. Alsina-Pagès, Erik van Maanen, Geert J. Laanstra

    Research output: Contribution to journalArticleAcademicpeer-review

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    Abstract

    his article describes the design and validation of deployable low-power probes and sensors to investigate the influence of the ionosphere and the Earth’s magnetic field on radio wave propagation below the plasma frequency of the ionosphere, known as Near Vertical Incidence Skywave (NVIS) propagation. The propagation of waves that are bent downward by the ionosphere is dominated by a bi-refractive mechanism called ‘magneto-ionic propagation’. The polarization of both downward waves depends on the spatial angle between the Earth’s magnetic field and the direction of propagation of the radio wave. The probes and sensors described in this article are needed to simultaneously investigate signal fading and polarization dynamics on six radio wave propagation paths. The 1-Watt probes realize a 57 dB signal-to-noise ratio. The probe polarization is controlled using direct digital synthesis and the cross-polarization is 25–35 dB. The intermodulation-free dynamic range of the sensor exceeds 100 dB. Measurement speed is 3000 samples/second. This publication covers design, practical realization and deployment issues. Research performed with these devices will be shared in subsequent publications.
    Original languageEnglish
    Article number2616
    Number of pages16
    JournalSensors (Switserland)
    Volume19
    Issue number11
    DOIs
    Publication statusPublished - 9 Jun 2019

    Fingerprint

    Radio Waves
    Radio waves
    radio waves
    Wave propagation
    Ionosphere
    wave propagation
    incidence
    Magnetic Fields
    Polarization
    ionospheres
    propagation
    probes
    sensors
    Incidence
    Sensors
    polarization
    Earth (planet)
    signal fading
    Signal-To-Noise Ratio
    Magnetic fields

    Keywords

    • deployable
    • magneto-ionic
    • magnetic field
    • polarization
    • ionosphere
    • radio wave propagation
    • Near Vertical Incidence Skywave (NVIS)
    • circular polarization

    Cite this

    @article{d129edecbdcb4affa65a7f9a3205cc11,
    title = "Design and validation of probes and sensors for the characterization of magneto-ionic radio wave propagation on Near Vertical Incidence Skywave paths",
    abstract = "his article describes the design and validation of deployable low-power probes and sensors to investigate the influence of the ionosphere and the Earth’s magnetic field on radio wave propagation below the plasma frequency of the ionosphere, known as Near Vertical Incidence Skywave (NVIS) propagation. The propagation of waves that are bent downward by the ionosphere is dominated by a bi-refractive mechanism called ‘magneto-ionic propagation’. The polarization of both downward waves depends on the spatial angle between the Earth’s magnetic field and the direction of propagation of the radio wave. The probes and sensors described in this article are needed to simultaneously investigate signal fading and polarization dynamics on six radio wave propagation paths. The 1-Watt probes realize a 57 dB signal-to-noise ratio. The probe polarization is controlled using direct digital synthesis and the cross-polarization is 25–35 dB. The intermodulation-free dynamic range of the sensor exceeds 100 dB. Measurement speed is 3000 samples/second. This publication covers design, practical realization and deployment issues. Research performed with these devices will be shared in subsequent publications.",
    keywords = "deployable, magneto-ionic, magnetic field, polarization, ionosphere, radio wave propagation, Near Vertical Incidence Skywave (NVIS), circular polarization",
    author = "Witvliet, {Ben A.} and Alsina-Pag{\`e}s, {Rosa M.} and {van Maanen}, Erik and Laanstra, {Geert J.}",
    year = "2019",
    month = "6",
    day = "9",
    doi = "10.3390/s19112616",
    language = "English",
    volume = "19",
    journal = "Sensors (Switserland)",
    issn = "1424-8220",
    publisher = "Multidisciplinary Digital Publishing Institute",
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    }

    Design and validation of probes and sensors for the characterization of magneto-ionic radio wave propagation on Near Vertical Incidence Skywave paths. / Witvliet, Ben A.; Alsina-Pagès, Rosa M.; van Maanen, Erik; Laanstra, Geert J.

    In: Sensors (Switserland), Vol. 19, No. 11, 2616, 09.06.2019.

    Research output: Contribution to journalArticleAcademicpeer-review

    TY - JOUR

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    AU - Witvliet, Ben A.

    AU - Alsina-Pagès, Rosa M.

    AU - van Maanen, Erik

    AU - Laanstra, Geert J.

    PY - 2019/6/9

    Y1 - 2019/6/9

    N2 - his article describes the design and validation of deployable low-power probes and sensors to investigate the influence of the ionosphere and the Earth’s magnetic field on radio wave propagation below the plasma frequency of the ionosphere, known as Near Vertical Incidence Skywave (NVIS) propagation. The propagation of waves that are bent downward by the ionosphere is dominated by a bi-refractive mechanism called ‘magneto-ionic propagation’. The polarization of both downward waves depends on the spatial angle between the Earth’s magnetic field and the direction of propagation of the radio wave. The probes and sensors described in this article are needed to simultaneously investigate signal fading and polarization dynamics on six radio wave propagation paths. The 1-Watt probes realize a 57 dB signal-to-noise ratio. The probe polarization is controlled using direct digital synthesis and the cross-polarization is 25–35 dB. The intermodulation-free dynamic range of the sensor exceeds 100 dB. Measurement speed is 3000 samples/second. This publication covers design, practical realization and deployment issues. Research performed with these devices will be shared in subsequent publications.

    AB - his article describes the design and validation of deployable low-power probes and sensors to investigate the influence of the ionosphere and the Earth’s magnetic field on radio wave propagation below the plasma frequency of the ionosphere, known as Near Vertical Incidence Skywave (NVIS) propagation. The propagation of waves that are bent downward by the ionosphere is dominated by a bi-refractive mechanism called ‘magneto-ionic propagation’. The polarization of both downward waves depends on the spatial angle between the Earth’s magnetic field and the direction of propagation of the radio wave. The probes and sensors described in this article are needed to simultaneously investigate signal fading and polarization dynamics on six radio wave propagation paths. The 1-Watt probes realize a 57 dB signal-to-noise ratio. The probe polarization is controlled using direct digital synthesis and the cross-polarization is 25–35 dB. The intermodulation-free dynamic range of the sensor exceeds 100 dB. Measurement speed is 3000 samples/second. This publication covers design, practical realization and deployment issues. Research performed with these devices will be shared in subsequent publications.

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    KW - polarization

    KW - ionosphere

    KW - radio wave propagation

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    KW - circular polarization

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    DO - 10.3390/s19112616

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    JO - Sensors (Switserland)

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