Results 251 to 260 of about 14,244,062 (276)

Long Range ID Using Sub-Aperture Array Based Imaging

Coherent Optical Technologies and Applications, 2008
The Air Force needs decision quality long range ID, but radar does not provide this capability. Laser radar provides high quality ID, but conformal aperture approaches are needed for next generation Air Force aircraft.
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Wide-angle SAR imaging based on sub-apertures joint sparse reconstruction

2018 IEEE MTT-S International Wireless Symposium (IWS), 2018
By synthesizing the sub-aperture images at various aspect angles, wide-angle synthetic aperture radar (SAR) can produce a reflectivity estimate for each spatial location and some information on anisotropy, which is useful for scene interpretation and target recognition.
Chao Sun, Qinggong Chang, Yahai Wang
openaire   +1 more source

Reconstruction and Stitching Method of Sub-aperture Images for Defect Detection on Curved Optical Surfaces

Measurement
The surface quality of curved optical components impacts optical system performance, yet their complex geometries pose challenges for defect detection. This study presents a multi-degree-of-freedom defect detection system (MDDS) integrating a multi-axis scanning stage, a microscopic imaging unit, and a data processing module. Driven by the motion stage,
Shiling Wang, Zhongyuan Chen, Chongyang Zheng, Zedong Wang, Xiyuan Li, Zhaorui Xu, Shaojing Peng, Lan Wu, Dong Liu   +8 more
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Sub-Aperture Mosaic Imaging Approach for Automotive Millimeter Wave SAR Imaging

2022 14th International Conference on Signal Processing Systems (ICSPS), 2022
Jiahui Wang, Yanqi Liu, Tianyue Shi, Xinhua Mao   +3 more
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Sub-aperture stitching strategy for dark-field imaging of large fine optical components

Applied Optics
Scratches, digs, and other defects play an important role in the quality control of fine large-aperture optical components. Dark-field microscopic imaging has become one of the most common methods for surface defect detection. Nevertheless, compared to the significant increase in the aperture of the test component, the imaging field of view is still ...
Shiling Wang, Le Zhao, Ming Kong, Yubo Liu, Shiwei Guo, Jing Yu, Dong Liu   +6 more
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An Unsupervised Ocean Surface Waves Suppression Algorithm Based on Sub-Aperture SAR Images

International Journal of Remote Sensing, 2023
Yuting Zhu, Haifeng Huang
exaly  

Technology of sub-aperture stitching based on mapping image matching

Infrared and Laser Engineering, 2016
卢丙辉 Lu Binghui, 陈凤东 Chen Fengdong, 刘炳国 Liu Bingguo, 刘国栋 Liu Guodong, 戚子文 Qi Ziwen   +4 more
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A Real-Time Unified Focusing Algorithm (RT-UFA) for Multi-Mode SAR via Azimuth Sub-Aperture Complex-Valued Image Combining and Scaling

IEEE Transactions on Geoscience and Remote Sensing, 2022
Mengdao Xing, Min Bao, Guang-Cai Sun
exaly  

Target Recognition in SAR Images Using Complex-Valued Network Guided With Sub-Aperture Decomposition

Remote Sensing, 2023
Zhaocheng Wang, Yingxi Liu, Ruonan Wang
exaly  

Imaging resolution of a sparse-aperture system with four sub-apertures

Proceedings of SPIE, 2008
Shengqian Wang, Changhui Rao, Wenhan Jiang   +2 more
openaire   +1 more source