机构

• 西安光学精密机械研究... [4]
• 地理科学与资源研究所 [2]
• 长春光学精密机械与物... [2]
• 国家空间科学中心 [1]
• 遥感与数字地球研究所 [1]
• 自动化研究所 [1]
• 更多

采集方式

• OAI收割 [12]

内容类型

• 期刊论文 [7]
• 会议论文 [5]

发表日期

• 2022 [2]
• 2019 [1]
• 2018 [1]
• 2013 [2]
• 2012 [2]
• 2010 [2]
• 更多

学科主题

• optics [1]

筛选

浏览/检索结果: 共12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提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Comparison of Multi-Methods for Identifying Maize Phenology Using PhenoCams 期刊论文  OAI收割 REMOTE SENSING, 2022, 卷号: 14, 期号: 2, 页码: 18 作者:  Guo, Yahui;  Chen, Shouzhi;  Fu, Yongshuo H.;  Xiao, Yi;  Wu, Wenxiang   |  收藏  |  浏览/下载：28/0  |  提交时间：2022/09/21 spectral and textural indices  maize phenological extraction  filtering methods   Comparison of Multi-Methods for Identifying Maize Phenology Using PhenoCams 期刊论文  OAI收割 REMOTE SENSING, 2022, 卷号: 14, 期号: 2, 页码: 18 作者:  Guo, Yahui;  Chen, Shouzhi;  Fu, Yongshuo H.;  Xiao, Yi;  Wu, Wenxiang   |  收藏  |  浏览/下载：35/0  |  提交时间：2022/09/21 spectral and textural indices  maize phenological extraction  filtering methods   Analysis and design of ground-based photoelectric detection system for star observation during the daytime 会议论文  OAI收割 Beijing, China, 2019-07-07 作者:  Yu, Yue;  Tian, Yan;  Hao, Wei;  Li, Zhe   |  收藏  |  浏览/下载：15/0  |  提交时间：2020/03/04 Star Detection  Photoelectric System  Spectral Filtering  Threshold   Doppler-robust high-spectrum-efficiency VCM-OFDM scheme for low Earth orbit satellites broadband data transmission 期刊论文  OAI收割 IET COMMUNICATIONS, 2018, 卷号: 12, 期号: 1, 页码: 35-43 作者:  Li, Jionghui;  Xiong, Weiming;  Sun, Geng;  Wang, Zhugang;  Huang, Yonghui   |  收藏  |  浏览/下载：74/0  |  提交时间：2018/03/02 Satellite Ground Stations  Satellite Links  Radio Receivers  Radio Transmitters  Ofdm Modulation  Modulation Coding  Doppler Shift  Filtering Theory  Doppler-robust High-spectrum-efficiency Vcm-ofdm Scheme  Low Earth Orbit Satellites Broadband Data Transmission  High-efficiency Satellite-ground Downlink Data Transmission System  Limited Spectrum Resource  Dynamic Link Conditions  Orbital Motion  Leo Satellite  Variable Coding Modulated Orthogonal Frequency Division Multiplexing  Satellite On-board Transmitter  Ground Station Receiver  Filtered-ofdm Signal  Adjustable Codmod  Spectral Efficiency  Physical Layer Frame Structure  Doppler Frequency Shift Compensation  Future Gigabit X-band Reliable Satellite-ground Downlink Transmissions   Theoretical analysis of scanning spectral filter method for coherent intensity contrast enhancement in femtosecond laser system 期刊论文  OAI收割 acta physica sinica, 2013, 卷号: 62, 期号: 15 作者:  Ma Zai-Ru 收藏  |  浏览/下载：41/0  |  提交时间：2015/06/09 ultrafast optics  coherent pulse contrast  spectral scanning filtering  short time Fourier transformation   Top-down spatiotemporal saliency detection using spectral filtering 会议论文  OAI收割 5th International Conference on Digital Image Processing (ICDIP), Beijing, PEOPLES R CHINA, APR 21-22, 2013 作者:  Li, Wanyi;  Wang, Peng;  Qiao, Hong;  Li, WY 收藏  |  浏览/下载：34/0  |  提交时间：2017/01/13 Visual attention  Top-down spatiotemporal saliency  Spectral filtering   Theoretical Analysis on scanning spectral filter based on the bi-refraction electro-optical interferometer for pulse contrast improvement in femtosecond laser 期刊论文  OAI收割 optics communications, 2012, 卷号: 285, 期号: 12, 页码: 2883-2888 作者:  Ma, Zairu;  Sui, Zhan;  Feng, Guoying;  Sun, Nianchun;  Wang, Yishan 收藏  |  浏览/下载：16/0  |  提交时间：2012/09/04 Ultrafast optics  Wavelength filtering devices  Spectral scanning filter   Theoretical analysis on scanning spectral filter method for signal-noise-ratio improvment in femtosecond laser system 期刊论文  OAI收割 acta physica sinica, 2012, 卷号: 61, 期号: 7 作者:  Ma Aai-Ru;  Sui Zhan 收藏  |  浏览/下载：35/0  |  提交时间：2015/06/30 ultrafast optics  ultrafast technology  spectral scanning filtering  short time fourier transform   Electro-optical imaging system identification using pseudo-random binary pattern (EI CONFERENCE) 会议论文  OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Le Y.; Jian W.; Jianzhong Z.; Qiang S.; Jianzhuo L. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 A method using pseudo-random binary pattern is developed for electro-optical imaging system identification. The imaging system is taken as a stable  linear  time-invariant  and causal filter  and its transfer function is measured through the pseudo-random binary sequence impulse responses identification. A digital mirror device (DMD) light projector is developed as the target generator  and wavelet thresholding is used to denoise the captured image. Pre-filtering spectral estimation algorithm with adaptive parameter selection is also proposed for the identification process  overcoming the challenge brought by the size limit derived from the optical isoplantic region. Simulations and experiments are presented to show the effectiveness of the proposed method.0-64. 2010 IEEE.   White-light spectral scanning interferometry for surface measurement system (EI CONFERENCE) 会议论文  OAI收割 6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China 作者:  Wang C. 收藏  |  浏览/下载：27/0  |  提交时间：2013/03/25 The paper introduces the white-light spectral scanning interferometry for surface measurement. This interferometry can be used to measure the roughness of both smooth surfaces and those with large step heights. This real-time surface measurement can be achieved using acousto-optic tuneable filtering (AOTF) technique without mechanical scanning. At first  the structure and principle of this interferometry is introduced. Then the algorithm of the surface roughness measurement is proposed. What's more  the experiment with standard test piece is conducted. Compared with the traditional laser-light interferometry  the data shows that the proposed method has a higher accuracy which is proved to be nano-scale. A conclusion is given at last in which the superiorities and the limitations of the proposed system were discussed. 2010 SPIE.