Chi Cheng

Research Fellow

ChiCheng.PNG Cheng is currently a Research Fellow at the ARL. He obtained his Ph.D degree in July 2016 from Peking University (PKU), Beijing, China. His Ph.D thesis was about real-time 3-D acoustical imaging. He received the B.Eng. degree in electronic engineering from University of Electronic Science and Technology of China, Chengdu, China, in 2011. Cheng was born in Anhui Province, China.

He joined ARL in October 2016. His research interests focus on underwater acoustical signal processing, including underwater real-time 3-D acoustical imaging, fast and adaptive beamforming, design of wideband array and waveform, broadband acoustical current profiler and underwater communication.

In his spare time, he enjoys listening to music, jogging, playing badminton and football. He also likes speculative movies and TV series.

Email: cheng (at)

Research Interests

Adaptive signal processing

Underwater imaging

Fast and adaptive beamforming

Underwater acoustical detection and estimation

Underwater communication

Design of wideband array and waveform

Broadband acoustical current profiler



  1. Cheng Chi, Zhaohui Li and Qihu Li., “Design of Optimal Multiple Phase-Coded Signals for Broadband Acoustical Doppler Current Profiler”, IEEE Journal of Oceanic Engineering, vol. 41, no. 2, pp. 302-317, 2016.
  2. Cheng Chi, Zhaohui Li and Qihu Li., “Fast Broadband Beamforming Using Nonuniform Fast Fourier Transform for Underwater Real-Time 3-D acoustical Imaging”, IEEE Journal of Oceanic Engineering, vol. 41, no. 2, pp. 249-261, 2016.
  3. Cheng Chi and Zhaohui Li., “Fast Computation of Wideband Beam Pattern for Designing Large 2-D Arrays”, IEEE Transaction on Ultrasonics, Ferroelectrics, and Frequency Control, vol. 63, no. 6, pp. 803-816, 2016.
  4. Cheng Chi, Zhaohui Li and Qihu Li., “Ultrawideband Underwater Real-time 3-D Acoustical Imaging with Ultra-sparse Arrays”, IEEE Journal of Oceanic Engineering, IEEE Journal of Oceanic Engineering, vol. 42, no. 1, pp. 97-108, 2017.
  5. Cheng Chi and Zhaohui Li., “High-Resolution Real-time Underwater 3-D Acoustical Imaging through Designing Ultra-Large Ultra-Sparse Ultra-Wideband 2-D Arrays”, IEEE Transaction on Instrumentation and Measurement, vol. 66, no. 10, pp. 2647-2657, 2017.
  6. Zhaohui Li and Cheng Chi.,"Fast computation of far-field pulse-echo PSF of arbitrary arrays for large sparse 2-D ultrasound array design", Ultrasonics, vol. 84, pp. 63-73, 2018.
  7. Qingsong Liu, Guodong Feng, Yingying Shang, Cheng Chi, Yufei Qiao, and Zhiqiang Gao., "Threshold monitoring of intraoperative auditory steady-state responses for ossiculoplasty surgery" Acta oto-laryngologica. 2:1-8, 2018.

Invited Talks and Abtracts

  1. Cheng Chi and Venugopalan Pallayil, “Noise cancellation for an autonomous underwater vehicle‐towed thin line array through recursive adaptive filtering”, in Acoustics'17 Boston (the 173 meeting of ASA), Jun. 2017.


  1. Cheng Chi and Zhaohui Li., “Design of Modulated Excitation Waveform Based on OFDM Signals for Medical Sound Imaging”, Proceedings of IEEE Conference on Signal Processing, 2014.
  2. Cheng Chi and Zhaohui Li., “Fast calculation of wideband beam pattern for designing large-scale planar arrays”, Proceedings of IEEE International Ultrasonics Symposium, 2015.
  3. Cheng Chi, Hari Vishnu, and Teong Beng Koay, "Improving broadband acoustic Doppler current profiler with orthogonal coprime pulse pairs and robust Chinese remainder theorem," IEEE Kobe Oceans, May, 2018.

PhD Thesis

Cheng Chi, Study on the key techniques of wideband underwater real-time 3-D acoustical imaging. PhD thesis, Peking University, 2016.