Results 41 to 50 of about 48,172 (166)

A Three-Dimensional Imaging Method for Unmanned Aerial Vehicle-Borne SAR Based on Nested Difference Co-Arrays and Azimuth Multi-Snapshots

Remote Sensing
Due to its miniature size and single-pass nature, Unmanned Aerial Vehicle (UAV)-borne array synthetic aperture radar (SAR) is capable of obtaining three-dimensional (3D) electromagnetic scattering information with a low cost and high efficiency, making ...
Ruizhe Shi, Yitong Luo, Zhe Zhang, Xiaolan Qiu, Chibiao Ding   +4 more
doaj   +1 more source

On the Forward Scattering of Microwave Breast Imaging

International Journal of Biomedical Imaging, 2012
Microwave imaging for breast cancer detection has been of significant interest for the last two decades. Recent studies focus on solving the imaging problem using an inverse scattering approach. Efforts have mainly been focused on the development of the inverse scattering algorithms, experimental setup, antenna design and clinical trials.
Hoi-Shun Lui, Andreas Fhager, Mikael Persson   +2 more
openaire   +5 more sources

Performance Analysis for Airborne Interferometric SAR Affected by Flexible Baseline Oscillation

Leida xuebao, 2014
The airborne interferometric SAR platform suffers from instability factors, such as air turbulence and mechanical vibrations during flight. Such factors cause the oscillation of the flexible baseline, which leads to significant degradation of the ...
Liu Zhong-sheng, Wang Bing-nan, Xiang Mao-sheng, Chen Long-yong   +3 more
doaj   +1 more source

A Complex Background SAR Ship Target Detection Method Based on Fusion Tensor and Cross-Domain Adversarial Learning

Remote Sensing
Synthetic Aperture Radar (SAR) ship target detection has been extensively researched. However, most methods use the same dataset division for both training and validation.
Haopeng Chan, Xiaolan Qiu, Xin Gao, Dongdong Lu   +3 more
doaj   +1 more source

Global Polarimetric Synthetic Aperture Radar Image Segmentation with Data Augmentation and Hybrid Architecture Model

Remote Sensing
Machine learning and deep neural networks have shown satisfactory performance in the supervised classification of Polarimetric Synthetic Aperture Radar (PolSAR) images. However, the PolSAR image classification task still faces some challenges. First, the
Zehua Wang, Zezhong Wang, Xiaolan Qiu, Zhe Zhang   +3 more
doaj   +1 more source

Few-shot Ship Classification of SAR Images via Scattering Point Topology and Dual-branch Convolutional Neural Network

Leida xuebao
With the widespread application of Synthetic Aperture Radar (SAR) images in ship detection and recognition, accurate and efficient ship classification has become an urgent issue that needs to be addressed. In few-shot learning, conventional methods often
Yipeng ZHANG, Dongdong LU, Xiaolan QIU, Fei LI   +3 more
doaj   +1 more source

Notch Filter Analysis and Its Application in Passive Coherent Location Radar (in English)

Leida xuebao, 2015
The Normalized Least-Mean-Squares (NLMS) algorithm is widely used to cancel the direct and multiple path interferences in Passive Coherent Location (PCL) radar systems.
Li Ji-chuan, Lu Xiao-de, Xiang Mao-sheng, Yang Peng-cheng   +3 more
doaj   +1 more source

A Novel Jamming Method Based on Sine Function Secondary Modulation and Phase Coded Modulation

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
With the development of synthetic aperture radar (SAR) imaging technology, the research of SAR jamming method has become an important topic in the field of electronic countermeasures.
Guikun Liu, Guangyuan Li, Zhenyang Xu, Haoming Xu, Feng Ming, Liang Li, Chen Song, Zhengshuai Li, Peng Wang   +8 more
doaj   +1 more source

PUSIF-DUNet: Deep SAR Imaging Network With Joint Optimization on Learnable Probabilistic Undersampling and Unambiguous Reconstruction

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Since the minimum antenna area constraint in the spaceborne single-channel synthetic aperture radar (SAR), it's difficult to achieve high-resolution and wide-swath imaging simultaneously.
Zirui Ma, Zhe Zhang, Bingchen Zhang, Xiaolan Qiu   +3 more
doaj   +1 more source

Model-based CP Selection Method for Calibration of Airborne InSAR with Sparse GCPs

Leida xuebao, 2012
High-precision height acquisition needs to correct the interferometric parameters errors by interferometric calibration for Interferometric Synthetic Aperture Radar (InSAR) system with many Ground Control Points (GCPs).
Hu Ji-wei, Hong Jun, Ming Feng, Li Liang
doaj   +1 more source