article · IEEE Transactions on Aerospace and Electronic Systems · 2025
Accelerated Left/Right Ambiguity Resolving and Angular Super-Resolution for Dual-Channel Forward-Looking SAR Imaging
Rui Chen, Wenchao Li, Jianyu Yang, Yin Zhang, Bowen Cheng, Hao Li, Junjie Wu
Cited by 1Abstract and details only
Abstract
By combining the echoes of two channels in azimuth, and utilizing the super-resolution algorithm for ill-posed problems, the left/right ambiguity in forward-looking synthetic aperture radar (SAR) can be resolved. However, due to the large size of the echo matrix and the need for multiplication and inversion operations, a heavy computational burden is usually encountered. In this paper, based on the time-frequency-space steering matrix, an accelerated left/right ambiguity resolving and angular super-resolution scheme for dual-channel forward-looking SAR imaging is proposed. In the scheme, the Hermitian Toeplitz Block Toeplitz (HTBT) property is exploited to accelerate the construction of the sample covariance matrix. Then, based on the Gohberg Semencul (GS) decomposition theorem and the 2D Levinson Durbin recursive algorithm, the inversion process of the high dimensional covariance matrix is transformed into a large number of low dimensional matrix inversion operations. Finally, based on the Toeplitz multiplication and the trigonometric polynomial expansion theories, the multiplication operations involved between the inverse sample covariance matrix and matrices or vectors are realized by FFT. Simulation and measured data demonstrate that this scheme is more efficient than existing algorithms while maintaining imaging performance.
Cite this paper
Chen, R., Li, W., Yang, J., Zhang, Y., Cheng, B., Li, H., & Wu, J. (2025). Accelerated Left/Right Ambiguity Resolving and Angular Super-Resolution for Dual-Channel Forward-Looking SAR Imaging. IEEE Transactions on Aerospace and Electronic Systems, 61(6), 16205–16220. https://doi.org/10.1109/taes.2025.3594662
Chen, Rui, et al. “Accelerated Left/Right Ambiguity Resolving and Angular Super-Resolution for Dual-Channel Forward-Looking SAR Imaging.” IEEE Transactions on Aerospace and Electronic Systems, vol. 61, no. 6, 2025, pp. 16205–20, https://doi.org/10.1109/taes.2025.3594662.
Chen, Rui, Wenchao Li, Jianyu Yang, Yin Zhang, Bowen Cheng, Hao Li, and Junjie Wu. 2025. “Accelerated Left/Right Ambiguity Resolving and Angular Super-Resolution for Dual-Channel Forward-Looking SAR Imaging.” IEEE Transactions on Aerospace and Electronic Systems 61 (6): 16205–20. https://doi.org/10.1109/taes.2025.3594662.
Chen, R. et al. (2025) ‘Accelerated Left/Right Ambiguity Resolving and Angular Super-Resolution for Dual-Channel Forward-Looking SAR Imaging’, IEEE Transactions on Aerospace and Electronic Systems, 61(6), pp. 16205–16220. Available at: https://doi.org/10.1109/taes.2025.3594662.
@article{chen2025accelerated,
title = {{Accelerated Left/Right Ambiguity Resolving and Angular Super-Resolution for Dual-Channel Forward-Looking SAR Imaging}},
author = {Chen, Rui and Li, Wenchao and Yang, Jianyu and Zhang, Yin and Cheng, Bowen and Li, Hao and Wu, Junjie},
journal = {IEEE Transactions on Aerospace and Electronic Systems},
volume = {61},
number = {6},
pages = {16205--16220},
year = {2025},
doi = {10.1109/taes.2025.3594662}
}Made from the index record. Check names, capitalisation and page numbers against the paper. Need another style? AI for Research has over 10,000.