机构

• 长春光学精密机械与... [13]
• 光电技术研究所 [4]
• 上海光学精密机械研究... [2]
• 南海海洋研究所 [1]
• 地质与地球物理研究所 [1]
• 新疆天文台 [1]
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采集方式

• OAI收割 [23]

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• 会议论文 [14]
• 期刊论文 [9]

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• 2024 [1]
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学科主题

• Geochemist... [1]
• 光存储 [1]

筛选

浏览/检索结果: 共23条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序作者升序作者降序 Performance analysis of the mutual coupling effect on Phased Array Feeds 期刊论文  OAI收割 Astronomical Techniques and Instruments, 2024, 卷号: 1, 期号: 4, 页码: 211-217 作者:  Kai Wang;  Maozheng Chen;  Jun Ma;  Hao Yan;  Liang Cao   |  收藏  |  浏览/下载：19/0  |  提交时间：2025/06/05 Reflector antenna  Focal field  Phased array  Beamforming  Mutual coupling   A denoising method based on CNN for the measurement of far-field focal spot of high power laser using Schlieren method 会议论文  OAI收割 Xiamen, PEOPLES R CHINA, 2020-08-25 作者:  Li, Gang;  Wang, Zhengzhou;  Wang, Li;  Tan, Meng;  Wang, Wei   |  收藏  |  浏览/下载：32/0  |  提交时间：2021/06/04 Measurement of far-field focal spot  Schlieren method  DnCNN  Denoising method   Wavefront reconstruction based on the Fresnel zone plane with hybrid focal lengths 期刊论文  OAI收割 OPTICS COMMUNICATIONS, 2018, 卷号: 425, 页码: 85-90 作者:  Kong, Qingfeng;  Wang, Shuai;  Yang, Ping   |  收藏  |  浏览/下载：51/0  |  提交时间：2019/08/23 Phase retrieval  GS algorithm  Fresnel zone plane  One far field  Hybrid focal lengths   Stress adjustment revealed by seismicity and earthquake focal mechanisms in northeast China before and after the 2011 Tohoku-Oki earthquake 期刊论文  OAI收割 TECTONOPHYSICS, 2016, 卷号: 666, 页码: 23-32 作者:  Yu, Hongyu;  Zhao, Li;  Liu, Yajing;  Ning, Jieyuan;  Chen, Qi-Fu   |  收藏  |  浏览/下载：51/0  |  提交时间：2017/11/22 Seismicity  Focal mechanism solutions  Regional stress field  Coulomb stress change  Tohoku-Oki earthquake  Northeast China   Creation of Sub-diffraction Longitudinally Polarized Spot by Focusing Radially Polarized Light with Binary Phase Lens 期刊论文  OAI收割 SCIENTIFIC REPORTS, 2016, 卷号: 6 作者:  Yu, An-ping;  Chen, Gang;  Zhang, Zhi-hai;  Wen, Zhong-quan;  Dai, Lu-ru   |  收藏  |  浏览/下载：66/0  |  提交时间：2018/06/14 Super-oscillatory Lens  Long Focal Length  Modulation  Generation  Amplitude  Optimization  Microscope  Needles  Beams  Field   Generation of a sub-diffraction hollow ring by shaping an azimuthally polarized wave 期刊论文  OAI收割 SCIENTIFIC REPORTS, 2016, 卷号: 6 作者:  Chen, Gang;  Wu, Zhi-Xiang;  Yu, An-ping;  Zhang, Zhi-hai;  Wen, Zhong-quan   |  收藏  |  浏览/下载：62/0  |  提交时间：2018/06/14 Super-oscillatory Lens  Cylindrical-vector Beams  Long Focal Length  Phase Modulation  Far-field  Light  Amplitude  Binary  Spot  Superresolution   Design and Study of Middle Infrared Spectrum System with Variational Field of View 期刊论文  OAI收割 SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 卷号: 34, 期号: 8, 页码: 2293-2297 作者:  Bai Yu;  Xing Ting-wen;  Jiang Ya-dong;  Feng Cheng 收藏  |  浏览/下载：40/0  |  提交时间：2015/07/10 Infrared spectrum  Large focal plane array  Variational field of view   Design and fabrication of imaging optical systems with freeform surfaces (EI CONFERENCE) 会议论文  OAI收割 Current Developments in Lens Design and Optical Engineering XIII, August 13, 2012 - August 15, 2012, San Diego, CA, United states 作者:  Zhang F. 收藏  |  浏览/下载：44/0  |  提交时间：2013/03/25 Freeform surfaces provide more degrees of freedom for design of optical systems  and enhance the ability of compensation and correction aberrations. Freeform surfaces are of advantage to balance the unsymmetrical aberrations  especially for the wide-field off-axis optical systems. This paper focus on an off-axis reflective optical system  which focal length is 550mm  F# is 6.5 and field of view (FOV) is 76. The system adopts some freeform surfaces. We discuss the problems we noticed in processes of design  manufacture  measurement and alignment  and the solutions. At last  the periodical research result and the expected performance are given. 2012 SPIE.   Numerical modeling of the current tectonic stress field in Taiwan strait and its adjacent regions 期刊论文  OAI收割 CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2012, 卷号: 55, 期号: 7, 页码: 2307-2318 Yang, XQ; Shi, XB; Xu, HH 收藏  |  浏览/下载：40/0  |  提交时间：2013/08/28 Taiwan Strait  Tectonic stress field  Numerical modeling  GPS velocity field  Focal mechanism solution (FMS)   Design and simulation of CMOS star sensor lens with large relative aperture and wide field (EI CONFERENCE) 会议论文  OAI收割 2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China Zhong X.; Jin G. 收藏  |  浏览/下载：79/0  |  提交时间：2013/03/25 A 50mm focal length  F/1.25  Gaussian type optical system is designed in this paper  which has 20field of view. Actual star image adding optical cross-talk effect of CMOS(Complementary Metal Oxide Semiconductor)  detector is simulated by non-sequential ray tracing in ZEMAX optical design and analysis software to evaluate its performance. The distortion relative to image spot centriod is introduced and calculated by simulated star images  which is less than 0.03% of lens in this paper. Thermal adaptability is discussed by opt-mechanic thermal analysis  which shows the RMS spot radius of marginal filed changes less than 0.7m under 10C temperature gradient  and changes less than 1m during homogeneous temperature changing from 40C to 40C. The results of analyses and simulations show the design of this lens can achieve the requirement of high precision CMOS star sensor well. 2011 IEEE.