A Robust Translational Motion Compensation Method Based on Weighted Optimization Framework—Second-Order Drift Particle Swarm Optimization

F Liu, D Huang, X Guo, C Feng - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Accurate translational motion compensation is critical for inverse synthetic aperture radar
(ISAR) imaging, especially for datasets with low signal-to-noise ratio (SNR) or sparse …

An efficient full-aperture approach for airborne spotlight SAR data processing based on time-domain dealiasing

M Ren, H Zhang, W Yu, Z Chen… - IEEE Journal of Selected …, 2022 - ieeexplore.ieee.org
The two-step approach (TSA) is an efficient full-aperture method to solve the Doppler
spectrum aliasing when processing data acquired by a synthetic aperture radar (SAR) …

Location of Synthetic Aperture Radar Imagery via Range History

M Jing, G Zhang - IEEE Transactions on Geoscience and …, 2022 - ieeexplore.ieee.org
Geolocation is one of the key synthetic aperture radar (SAR) image processing procedures
in SAR-based remote-sensing applications. The conventional SAR imagery geolocation …

Synthetic aperture passive localization method based on slant range orthogonal expansion

X He, M Deng, B Chai, W Dong, Z Zhang… - IEEE Journal on …, 2023 - ieeexplore.ieee.org
The synthetic aperture passive localization system generally compensates for the second-
order phase term of the received signal with the Taylor series of the range history and then …

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 …

Ship Focusing and Positioning Based on 2-D Ambiguity Resolving for Single-Channel SAR Mounted on High-Speed Maneuvering Platforms With Small Aperture

N Li, M Xing, Y Hou, S Zhou… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
Due to the constraint of minimum antenna area, 2-D ambiguity resolving is a challenging
task in ship focusing of single-channel SAR mounted on high-speed maneuvering platforms …

Coherent range-dependent map-drift algorithm for improving SAR motion compensation

M Zhang, G Wang, F Wei, X Jin - Journal of Systems …, 2023 - ieeexplore.ieee.org
Synthetic aperture radar (SAR) is usually sensitive to trajectory deviations that cause serious
motion error in the recorded data. In this paper, a coherent range-dependent map-drift …

Low Correlation Interference OFDM-NLFM Waveform Design for MIMO Radar Based on Alternating Optimization

T Liu, J Sun, Q Li, Z Hao, G Wang - Sensors, 2021 - mdpi.com
The OFDM chirp signal is suitable for MIMO radar applications due to its large time-
bandwidth product, constant time-domain, and almost constant frequency-domain modulus …

A Novel Motion Compensation Framework for Micro UAV FMCW SAR

F Zhang, S Yan, Y Fu, W Yang… - 2023 IEEE 16th …, 2023 - ieeexplore.ieee.org
Micro UAV gives easily rise to motion error with low amplitude and high frequency. In Micro
UAV SAR imaging, the motion error is always 2-D space variant. The high frequency motion …

An Estimation and Compensation Method for Motion Trajectory Error in Bistatic SAR

Y Li, W Li, J Wu, Z Sun, H Sun, J Yang - Remote Sensing, 2022 - mdpi.com
Bistatic synthetic aperture radar (BiSAR) has drawn increasing attention in recent studies
benefiting from its ability for forward-looking imaging, its capability of receiver radio silence …