Exact and robust reconstructions of integer vectors based on multidimensional Chinese remainder theorem (MD-CRT)

L Xiao, XG Xia, YP Wang - IEEE Transactions on Signal …, 2020 - ieeexplore.ieee.org
The robust Chinese remainder theorem (CRT) has been recently proposed for robustly
reconstructing a large nonnegative integer from erroneous remainders. It has found many …

Improved velocity estimation method for Doppler sonar based on accuracy evaluation and selection

Y Yang, S Fang - Journal of Marine Science and Engineering, 2021 - mdpi.com
The matched filtering method and the waveform-tracking method cannot maintain optimal
velocity estimation performance all of the time. In order to solve this problem, this paper …

Robust Chinese Remainder Theorem–Based Synthetic Aperture Sonar Motion Estimation

C Chi, S Chen, R Zhong, P Zhang… - IEEE Journal of …, 2024 - ieeexplore.ieee.org
Motion estimation is required to obtain high imaging quality in synthetic aperture sonars
(SASs). Displaced phase center antenna (DPCA) micronavigation is an important technique …

Estimating AUV Motion Using a Dual-Sided Synthetic Aperture Sonar

S Chen, C Chi, P Zhang, P Wang, R Hu… - IEEE Journal of …, 2023 - ieeexplore.ieee.org
The navigation and localization of autonomous underwater vehicles (AUVs) in complex
underwater environments are challenging. Synthetic aperture sonar (SAS) can provide a …

Deep learning‐based time delay estimation for motion compensation in synthetic aperture sonars

S Chen, C Chi, P Zhang, P Wang, J Liu… - IET Radar, Sonar & …, 2024 - Wiley Online Library
Accurate and robust time delay estimation is crucial for synthetic aperture sonar (SAS)
imaging. A two‐step time delay estimation method based on displaced phase centre …

Waveform design using coprime frequency-modulated pulse trains for reverberation suppression of active sonar

X Cui, C Chi, S Li, Z Li, Y Li, H Huang - Journal of Marine Science and …, 2022 - mdpi.com
Over the last two decades, low-frequency active sonar has become an attractive tool for
underwater target detection. The reverberation to signal ratio (RSR) of transmitted …

[HTML][HTML] Motion compensation using joint-sub-band phase unwrapping for synthetic aperture sonar

S Chen, C Chi, P Zhang, P Wang, Y Li, J Liu… - JASA Express …, 2022 - pubs.aip.org
Motion compensation using joint-sub-band phase unwrapping for synthetic aperture sonar |
JASA Express Letters | AIP Publishing Skip to Main Content Umbrella Alt Text Umbrella Alt Text …

Dynamic optimization method for broadband ADCP waveform with environment constraints

Y Yang, S Fang - Sensors, 2021 - mdpi.com
Broadband acoustic Doppler current profiler (ADCP) is widely used in agricultural water
resource explorations, such as river discharge monitoring and flood warning. Improving the …

Improving Mapping Efficiency Using a Coprime Dual-Frequency Method for Synthetic Aperture Sonars

M Hou, C Chi, P Zhang, P Wang, J Liu… - OCEANS 2021: San …, 2021 - ieeexplore.ieee.org
Active synthetic aperture sonar (SAS) is a sonar producing a high-resolution, optical-like
“image” of the seafloor. However, mapping efficiency has always restricted the further …