An improved imaging algorithm for multi-receiver SAS system with wide-bandwidth signal
X Zhang, P Yang - Remote Sensing, 2021 - mdpi.com
When the multi-receiver synthetic aperture sonar (SAS) works with a wide-bandwidth signal,
the performance of the range-Doppler (RD) algorithm is seriously affected by two …
the performance of the range-Doppler (RD) algorithm is seriously affected by two …
Quaternion Neural Networks: A physics-incorporated intelligence framework [Hypercomplex Signal and Image Processing]
Why quaternions in neural networks (NNs)? Are there quaternions in the human brain?“No”
may be an ordinary answer. However, quaternion NNs (QNNs) are a powerful framework …
may be an ordinary answer. However, quaternion NNs (QNNs) are a powerful framework …
Biquaternion Fourier domain filter for InSAR noise suppression by enhancing polarimetric-interferometric fringe patterns
The Goldstein-Werner (GW) filter is one of the most widely used methods to suppress noise
in interferometric synthetic aperture radar (InSAR) data. However, the insufficient filtering …
in interferometric synthetic aperture radar (InSAR) data. However, the insufficient filtering …
Polarimetric goldstein filter for interferometric phase denoising
The Goldstein filter is one of the most commonly used methods to reduce noise in
interferometric synthetic aperture radar data. However, the low filtering performance in …
interferometric synthetic aperture radar data. However, the low filtering performance in …
Proposal of biquaternion neural networks for coherent processing of polarization-and-phase information in PolSAR and PolInSAR
As the resolution of polarimetric synthetic aperture radar (PolSAR) and polarimetric
interferometric SAR (PolInSAR) data increases, coherent processing of polarization and …
interferometric SAR (PolInSAR) data increases, coherent processing of polarization and …
Phasor quaternion neural network framework and its significance in Big SAR intelligence
A Hirose - 2021 International Conference on Emerging …, 2021 - ieeexplore.ieee.org
In this paper, first we overview the use of artificial intelligence (AI) in observation and data
processing in synthetic aperture radar (SAR). Then we discuss the function and significance …
processing in synthetic aperture radar (SAR). Then we discuss the function and significance …
Interferometric phase restoration using biquaternion neural networks in PolInSAR
Singular points (SPs) in interferometric synthetic aperture radar (InSAR) data hinder the
generation of accurate digital elevation models (DEMs). Since one of the main causes of …
generation of accurate digital elevation models (DEMs). Since one of the main causes of …
Uniform LFM reconstruction from non-uniform data
X Zhang, X Liu, Z **, Y Liu - 2021 14th International Congress …, 2021 - ieeexplore.ieee.org
The multi-channel sampling technique is often exploited nowadays, as it can largely reduce
the sampling rate. However, it may suffer from non-uniform sampling. If this data was directly …
the sampling rate. However, it may suffer from non-uniform sampling. If this data was directly …
Adaptive Subsurface Imaging based on Peak Phase-Profile: The Significance in Separation of Scattering Phase from Propagation Phase
This paper discusses the separation of scattering phase and propagation phase in radar
systems. Recently we proposed a novel radar imaging scheme using complex-valued self …
systems. Recently we proposed a novel radar imaging scheme using complex-valued self …
SAS Doppler Estimation Based on Radon Transformation
X Zhang, Z **, X Feng, Y Liu - 2021 CIE International …, 2021 - ieeexplore.ieee.org
Due to the motion errors, synthetic aperture sonar (SAS) maybe suffers from slight deviation
of Doppler centroid. If the inaccurate Doppler centroid is used for imagery, the SAS image …
of Doppler centroid. If the inaccurate Doppler centroid is used for imagery, the SAS image …