Results 1 to 10 of about 41,432 (298)
A multi‐aperture coupling liquid attenuator [PDF]
IET Microwaves, Antennas & Propagation, 2021 A liquid attenuator with multi‐aperture coupling is proposed. It consists of two coupled rectangular waveguide cavities, two transparent containers and pure water.
Dandan Yan +4 more
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Multi-aperture foveated imaging [PDF]
Optics Letters, 2016 Foveated imaging, such as that evolved by biological systems to provide high angular resolution with a reduced space-bandwidth product, also offers advantages for man-made task-specific imaging. Foveated imaging systems using exclusively optical distortion are complex, bulky, and high cost, however.
Carles Santacana, Guillem +6 more
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Continuous Phase Plate Structuring by Multi-Aperture Atmospheric Pressure Plasma Processing [PDF]
Micromachines, 2019 A multi-aperture atmospheric pressure plasma processing (APPP) method was proposed to structure the continuous phase plate (CPP). The APPP system was presented and removal investigation showed the removal function of APPP was of a high repeatability and ...
Duo Li +5 more
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A Multi‐foci Sparse‐Aperture Metalens
Advanced ScienceMulti‐foci lenses are essential components for optical communications, virtual reality display and microscopy, yet the bulkiness of conventional counterparts has significantly hindered their widespread applications.
Borui Xu +7 more
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A Low-Cost Two-Dimensional Scalable Active Receive Phased Array with 8 Simultaneously Reconfigurable Beams [PDF]
MicromachinesThis paper presents a compact multi-beam dual-circularly polarized phased array receiving system operating in the 10.7–12.7 GHz frequency band is designed and implemented, which can generate eight reconfigurable receiving beams with independently ...
Haifu Zhang +6 more
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DC-Mamba for surface micro defect classification on large aperture optics with multi axis attention [PDF]
Scientific ReportsLarge-aperture optics play a pivotal role in high-performance optical systems, and the presence of micro-defects on their surfaces can significantly degrade system performance and reliability.
Dejin Zhao +9 more
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Statistical Model of Digital Coherent Combining Efficiency in Multi-aperture Receivers
Guangtongxin yanjiu, 2022 In order to mitigate the performance fading of Free-Space Optical (FSO) communication system caused by atmospheric turbulence, a multi-aperture receiving scheme based on digital coherent beam combining is used.
Jing-song XIANG, Xin-hao Lü
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Multi-aperture imaging for flat cameras [PDF]
Optics Letters, 2020 Imaging with high angular resolution requires large apertures and long focal lengths. This has prevented the integration of telephoto lenses into thin devices such as modern mobile phones. We report a camera module employing multiple rotated rectangular apertures and folding of the optical system into the plane of the camera, enabling an order-of ...
Carles, Guillem, Harvey, Andrew R.
openaire +2 more sources
Advances in Mechanical Engineering, 2023 Multi-aperture electrical connectors are widely used in the aerospace system to provide high-reliability and high-quality connections. The existing reliability assessment methods only focus on the single-aperture electrical connectors, and ignored the ...
Ping Qian +4 more
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Remote Sensing, 2022 The spaceborne P-band fully polarimetric synthetic aperture radar (SAR) working system is highly susceptible to the scintillation effects induced by ionospheric irregularities due to its low carrier frequency.
Feixiang Tang +4 more
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