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999 research outcomes, page 1 of 100
  • publication . 2021
    Open Access
    Authors:
    Faguang Chang; Dexin Li; Zhen Dong; Yang Huang; Zhihua He;
    Persistent Identifiers
    Publisher: MDPI AG

    Due to the high altitude of geosynchronous synthetic aperture radar (GEO SAR), its synthetic aperture time can reach up to several hundred seconds, and its revisit cycle is very short, which makes it of great application worth in the remote sensing field, such as in dis...

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  • publication . Article . 2021
    Open Access English
    Authors:
    Antonio Arcidiacono; Daniele Vito Finocchiaro; Riccardo De Gaudenzi; Oscar del Rio-Herrero; Stefano Cioni; Marco Andrenacci; Riccardo Andreotti;
    Persistent Identifiers
    Publisher: MDPI AG

    Non-orthogonal multiple access (NOMA) technologies are considered key technologies for terrestrial 5G massive machine-type communications (mMTC) applications. It is less known that NOMA techniques were pioneered about ten years ago in the satellite domain to match the g...

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  • publication . Article . 2021
    Open Access
    Authors:
    Issa A. D. Nesnas; Lorraine Fesq; Richard Volpe;
    Persistent Identifiers
    Publisher: Springer Science and Business Media LLC

    Abstract Purpose of Review The purpose of this review is to highlight space autonomy advances across mission phases, capture the anticipated need for autonomy and associated rationale, assess state of the practice, and share thoughts for future advancements that could l...

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  • publication . Article . 2021
    Open Access English
    Authors:
    Alice Pellegrino; Maria Giulia Pancalli; Andrea Gianfermo; Paolo Marzioli; Federico Curiano; Federica Angeletti; Fabrizio Piergentili; Fabio Santoni;
    Persistent Identifiers
    Publisher: MDPI AG
    Country: Italy

    This paper presents the HORUS mission, aimed at multispectral and multiangle (nadir and off-nadir) planetary optical observation, using Commercial Off-The-Shelf (COTS) instruments on-board a 6-Unit CubeSat. The collected data are characterized by a sub-kilometer resolut...

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  • publication . Conference object . 2021
    Authors:
    Joe Khalife; Mohammad Neinavaie; Zaher M. Kassas;
    Publisher: IEEE

    An algorithm for blind Doppler frequency estimation from orthogonal frequency division multiplexing (OFDM) signals transmitted by low Earth orbit (LEO) satellites is developed. A method for resolving the ambiguity in the Doppler estimate is also discussed. Two sets of e...

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  • publication . Article . 2021
    Open Access English
    Authors:
    Jacco Hoekstra; Joost Ellerbroek;
    Persistent Identifiers
    Country: Netherlands

    Abstract Purpose of Review A lot of research into decentralised, state-based conflict detection and resolution, or detect and avoid algorithms has been executed. This paper explains the essential properties of state-based conflict detection and reviews the work in the c...

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  • publication . Article . 2021
    Authors:
    Yue Zhou; Jie Wu; Liang Li; Qisheng Guo; Xijuan Zhu; Jing Ma;
    Persistent Identifiers
    Publisher: Walter de Gruyter GmbH

    Abstract Numerical calculation of infrared emission from hot plume is of great significance for flight monitoring and detections. In this paper, the SNB (statistical narrow band) model established with parameters derived from the high-resolution spectral database HITEMP...

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  • publication . Article . 2021
    Open Access English
    Authors:
    Maria Maniadaki; Athanasios Papathanasopoulos; Lilian Mitrou; Efpraxia-Aithra Maria;
    Persistent Identifiers
    Publisher: MDPI AG

    Using remote sensing technologies to ensure environmental protection responds to the need of protection of a right and a public good and interest. However, the increasing introduction of these technologies has raised new challenges, such as their interference with the r...

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  • publication . Conference object . 2021
    Authors:
    Takeshi Motohka; Yukihiro Kankaku; Satoko Miura; Shinichi Suzuki;
    Persistent Identifiers
    Publisher: IEEE

    ALOS-2 and ALOS-4 (Advanced Land Observing Satellite-2/4) are Japanese earth observation satellites with L-band SAR (Synthetic Aperture Radar) sensors. ALOS-2 has been operating since 2014, and its observations have been utilized for disaster mitigation, environmental m...

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  • publication . Conference object . 2021
    Authors:
    Vinod V. Reddy; Soorya Peter;
    Persistent Identifiers
    Publisher: IEEE

    Besides the detection of targets and estimation of their parameters, micro-motions of various target parts, that give rise to micro-Doppler signatures, are extracted from Radar acquisitions for target identification. Frequency modulated continuous-wave (FMCW) radar is i...

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999 research outcomes, page 1 of 100