Search Results - "Sanghyouk Choi"

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  1. 1
    Robust Cross-SCORE Algorithm Against Bit Transitions for GPS Interference Suppression

    Robust Cross-SCORE Algorithm Against Bit Transitions for GPS Interference Suppression by Joo, Inone, Choi, Sanghyouk, Chun, Joohwan, Sin, Cheonsig

    Published in IEEE communications letters (01-06-2017)
    “…In the blind beamforming technique utilizing self-coherence properties of GPS signals, the covariance matrices estimated from sample data, including the…”
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  2. 2
    A Stochastic CRB for Non-unitary Beam-space Transformations and its Application to Optimal Steering Angle Design

    A Stochastic CRB for Non-unitary Beam-space Transformations and its Application to Optimal Steering Angle Design by Choi, Sanghyouk, Chun, Joohwan, Paek, Inchan, Jang, Jonghun

    Published in IEEE signal processing letters (01-11-2015)
    “…Many of modern radar systems employ antenna arrays with thousands of anetnnas. These antennas are usually grouped into a few subarrays or beams through the…”
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  3. 3
    A SAR Autofocus Technique With MUSIC and Golden Section Search for Range Bins With Multiple Point Scatterers

    A SAR Autofocus Technique With MUSIC and Golden Section Search for Range Bins With Multiple Point Scatterers by Boyeon Koh, Sanghyouk Choi, Joohwan Chun

    Published in IEEE geoscience and remote sensing letters (01-08-2015)
    “…Many synthetic aperture radar (SAR) autofocus techniques use range bins containing a single dominant point scatterer to estimate the phase error by maximizing…”
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  4. 4
    Performance analysis of the jamming signal geolocation system using on-board AoA estimator mounted on UAV

    Performance analysis of the jamming signal geolocation system using on-board AoA estimator mounted on UAV by Sanghyouk Choi, Jihun Cha

    “…Various unmanned aerial vehicle (UAV) applications are being developed with lightweight on-board equipments since UAV can easily move to a desired position and…”
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  5. 5
    A brief survey of sensors for detect, sense, and avoid operations of Small Unmanned Aerial Vehicles

    A brief survey of sensors for detect, sense, and avoid operations of Small Unmanned Aerial Vehicles by Ji-Hwan Son, Sanghyouk Choi, Jihun Cha

    “…This paper briefly presents current status of sensors for detect, sense, and avoid operations of Small Unmanned Aerial Vehicles (SUAVs). Due to significantly…”
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  6. 6
    A ray tracing simulation to visualize atmospheric effect on wave propagation using radiosonde information

    A ray tracing simulation to visualize atmospheric effect on wave propagation using radiosonde information by Sanghyouk Choi, Wonsik Jung, Joohwan Chun, Dongmin Park, Sungchul Kang

    “…We present a method for ray tracing simulation to visualize atmospheric effect on wave propagation using radiosonde information. Our simulation includes the…”
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  7. 7
    An analysis on motion error effect in ISAR imaging systems

    An analysis on motion error effect in ISAR imaging systems by Sanghyouk Choi, Joohwan Chun

    “…Target motion of inverse synthetic aperture radar (ISAR) has two direction, toward range direction and toward cross range direction. Target motion…”
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