Sunghwa Lee

Ph.D. candidate

sunghwa.lee@yonsei.ac.kr

Hello!

I am a Ph.D. student at Yonsei University (advisor: Prof. Jiwon Seo). I have a comprehensive understanding of signal processing, deep learning, and speech recognition, developed through my Ph.D. studies on radar-based silent speech recognition. I am eager to apply my expertise on tackling speech-related problems. Currently, my research interest lies in speech and speaker recognition.


Publications

  • Journal papers
  • SFOL Pulse Transmission Strategy for High Power DME
    S. Park, J. Park, S. Lee, E. Kim, and J. Seo
    Aerospace Science and Technology, in preparation.

    IR-UWB radar-based silent speech recognition of phonemes, words, and phrases
    S. Lee, Y. H. Shin, M. Kim, and J. Seo
    IEEE Access, vol. 11, pp. 144844-14859, Dec. 2023.
    Official link

    SFOL DME pulse shaping through digital predistortion
    S. Lee, E. Kim, and J. Seo
    IEEE Transactions on Aerospace and Electronic Systems, vol. 58, no. 3, pp. 2616⁠–2620, Mar. 2021.
    Official link

    Autonomous safe landing-area determination for rotorcraft UAVs using multiple IR-UWB radars
    Y. H. Shin, S. Lee, and J. Seo
    Aerospace Science and Technology, vol. 69, pp. 617⁠–624, 2017.
    Official link

  • Conference papers
  • Movement detection of tongue and related body parts using IR-UWB radar
    S. Lee and Y. H. Shin
    2022 13th International Conference on ICT Convergence (ICTC), 2022, pp. 1487⁠–1491.
    Official link

    Word error rate comparison between single and double radar solutions for silent speech recognition
    S. Lee and J. Seo
    2019 19th International Conference on Control, Automation, and Systems (ICCAS), 2019, pp. 1211⁠–1214.
    Official link

    IR-UWB Radar-Based Near-field head rotation movement sensing under fixed body motions
    S. Lee and J. Seo
    2018 International Conference on Electronics, Information, and Communication (ICEIC), 2018.
    Official link

    IR-UWB radar-based near-field intentional eyelid movement sensing under fixed head and body motions
    S. Lee and J. Seo
    2017 17th International Conference on Control, Automation and Systems (ICCAS), 2017, pp. 1959⁠–1962.
    Official link

  • Domestic conference papers
  • Implementation of real-time digital predistortion for SFOL pulse shaping in DME
    S. Lee, S. Park, E. Kim, and J. Seo
    2022 Conference of the Institute of Positiong, Navigation, and Timing (IPNT), 2022, pp. 289⁠–292.

    Target detection method using non-negative least squares for IR-UWB radar-based silent speech recognition
    S. Lee and J. Seo
    2022 Winter Conference of the Korean Institute of Communications and Information Sciences (KICS), 2022, pp. 682⁠683.

    Automation of the digital predistortion testbed for SFOL DME pulse shaping
    S. Lee, S. Park, E. Kim, and and J. Seo
    2021 Conference of the Korean Navigation Institute (KONI), 2021, pp. 135–137.

    Analysis of radar data in the time and frequency domains for silent speech recognition
    S. Lee and J. Seo
    2019 Conference of the Korean Navigation Institute (KONI), 2019, pp. 63⁠–65.

    Effective arrangement of multiple IR-UWB radars for silent speech recognition
    S. Lee and J. Seo
    2018 Conference of the Korean Navigation Institute (KONI), 2018, pp. 159⁠–160.

    Estimation of liquid residue in an opaque and non-metallic container utilizing IR-UWB radar signal strength
    S. Lee and J. Seo
    2018 Conference of the Korean Navigation Institute (KONI), 2017, pp. 170⁠–171.

    UWB radar and range Doppler algorithm based SAR Implementation for a short range single object detection
    S. Lee and J. Seo
    2016 Summer Conference of the Institute of Electronics and Information Engineers (IEIE), 2016, pp. 530⁠–532.

    Awards & Honors

    Merit Academic Paper Award
    Yonsei University, South Korea, 2023

    Best Paper Award
    2019 Conference of the KONI, Nov 2019

    Best Achievement in the Creative Project
    Institute for Information & communications Technology Promotion, South Korea, 2015

    Excellent Creative Exhibition Award
    College of Engineering, Yonsei University, South Korea, 2014

    Graduate Fellowship
    ICT Consilience Creative Program, Ministry of Science and ICT, South Korea, 2016⁠–2019

    Undergraduate Fellowship
    ICT Consilience Creative Program, Ministry of Science and ICT, South Korea, 2013⁠–2016

    Miscellaneous

    Lifelong Research Goal


    My lifelong research goal is to develop a new human-computer interface that can replace the keyboard and mouse. While they do provide fast response times with minimal errors, they require physical movements to operate, which can be bothersome. Speech, on the other hand, is an efficient and convenient form of communication that doesn't necessitate extensive and cumbersome physical movements. I believe that a speech-based AI assistant could be the solution to achieving my lifelong research goal.

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