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	Field testing innovative differential geospatial and photogrammetric monitoring technologies in mountainous terrain near Ashcroft, British Columbia, Canada 期刊论文 OAI收割 JOURNAL OF MOUNTAIN SCIENCE, 2021, 卷号: 18, 期号: 1, 页码: 1-20 作者: Huntley, David; Bobrowsky, Peter; Macleod, Roger; Cocking, Robert; Joseph, Jamel \| 收藏 \| 浏览/下载：82/0 \| 提交时间：2023/02/28 Landslide Change detection monitoring Global Navigation Satellite System Real-Time Kinematic System Geocube™ Bathymetric Survey Unmanned Aerial Vehicle Interferometric Synthetic Aperture Radar
	Real-time temperature estimation method for electromagnetic performance improvement of a large axisymmetric radio telescope under solar radiation 期刊论文 OAI收割 Iet Microwaves Antennas & Propagation, 2020, 卷号: 14, 期号: 13, 页码: 1635-1642 作者: Lian, Peiyuan; Wang, Congsi; Xu, Qian; Xiang, Binbin; Shi, Yu \| 收藏 \| 浏览/下载：43/0 \| 提交时间：2021/06/25 radiotelescopes temperature sensors reflector antennas solar radiation temperature database table look-up method temperature field estimation speed real-time estimated temperature field temperature sensors real-time compensation axisymmetric telescopes time temperature estimation method electromagnetic performance improvement axisymmetric radio telescope solar radiation electromagnetic performances EM performance improvements temperature simulation fast estimation method transient temperature field simulation high-frequency radio telescopes large-aperture radio telescopes reflector antenna reflector antennas surface error adjustment pattern field Engineering Telecommunications
	IMAGING COMPARISON BETWEEN THE REAL APERTURE AND SYNTHETIC APERTURE MICROWAVE RADIOMETERS: A CASE STUDY FOR GEO SOUNDER 会议论文 OAI收割 Valencia, SPAIN, JUL 22-27, 2018 作者: Zhang, Cheng; Liu, Hao; Wu, Ji \| 收藏 \| 浏览/下载：20/0 \| 提交时间：2019/01/31 microwave radiometer synthetic aperture real aperture imaging GEO
	A Low-Cost Implementation of a 360 degrees Vision Distributed Aperture System 期刊论文 OAI收割 IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, 2015, 卷号: 25, 期号: 2, 页码: 225-238 作者: Peng, Xiaoming; Bennamoun, Mohammed; Wang, Qingbo; Ma, Qian; Xu, Zhiyong 收藏 \| 浏览/下载：20/0 \| 提交时间：2015/07/10 Bundle adjustment camera orientation estimation distributed aperture systems (DASs) GPU programming image registration image stitching real-time virtual view synthesis
	Automatic spin coater for concave spherical substrate (EI CONFERENCE) 会议论文 OAI收割 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, July 8, 2007 - July 12, 2007, Chengdu, China Fengchao L.; Jingsong G.; Xiaoguo F.; Jingli Z.; Zhijun X.; Jun H.; Fenglin X.; Huiqing W.; Xiaohan L. 收藏 \| 浏览/下载：23/0 \| 提交时间：2013/03/25 Coating photoresist film with uniform thickness on concave spherical substrate (CSS) is very important for microfabrication of concave spherical optical elements by lithography technique via a laser direct writer for the uneven photoresist film will result in ununiformity of line width so as to influence the characters of optical elements. For improving the uniformity of photoresist film coating on CSS an automatic spin coater was designed. The process and the mathematical model of spin coating for CSS were analyzed. Difficulties for realizing the spin coater consist of the control of multi-axis motion precisely and collaboratively valves on/ff properly and real-timely. A flexible and well-behaved spinning motion system was achieved by tmeans of principal and subordinate CPUs control. The motion program for spin coating could be created and implemented automatically while the pressure and the valves were was watched and controlled in real time. Film coating and laser direct writing experiments on a CSS with aperture equals to 100 mm and radius equals to 370 mm were performed. Photoresist film with uniform thickness on CSS was obtained by selecting proper spin coating parameters such as rotational speed acceleration and viscosity of the photoresist. After development the section analysis by the atomic force microscope showed that photoresist film thickness was about 517 nm in the center and about 520 nm in the edge of substrate the film thickness error was within 1% and the line width was about 6.0 m with steep sides parallel each other. Experimental results indicate that uniform thickness of thin photoresist film has been coated on CSS by the spin coater which contributes to quality improvement of laser direct writing lines on CSS.
	Research on the support structure of the primary mirror of large-aperture telescope (EI CONFERENCE) 会议论文 OAI收割 3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Large Mirrors and Telescopes, July 8, 2007 - July 12, 2007, Chengdu, China Yang W.; Jingxu Z. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 Large-aperture telescope can be used in surveying battlefield researching landform searching object real-time monitoring imaging detecting and identifying spatial targets and so on. A large-aperture telescope for achieving high resolution power is designed to monitor spatial target and image in real time. Real-time monitoring plays an important role in military conflicts. The orbit parameter of object quantity geometrical shape parameter and so on can be obtained by detect spatial target. With the development of optical technology people require larger aperture in optics-electronic (OE) system. By increasing optical aperture the ability of collecting light and resolution power in the system can be enhanced. But the support structure of the primary mirror of large-aperture telescope will be a very difficult problem. With the increase of primary mirror aperture the weight of the primary mirror will become larger than before. The root mean square (rms) of the primary mirror is affected by many factors such as deadweight deformation of heat environment and so on. Due to the primary mirror of telescope is an important component of telescope system. By reducing the weight of primary mirror precision of the system is ensured. During the designing phase one can consider the supporting project of the primary mirror synthetically and analyze it roundly according to technical requirement of optical system and the effect factors. The final structural design can be reasonable. In an astronomical telescope the surface of reflector is an important part for collecting dark radiation of celestial bodies. Its surface shape will have an effect on collecting efficiency of telescope radiant energy directly. So the rms must be very high. Optical system of large aperture small wavelength and small focus can receive maximal light intensity. For ground-based optical astronomical telescope the design proposed in the paper can satisfy the requirement of the possible minimum atmosphere seeing at astronomical observatory site and exert the use efficiency of the telescope adequately. So the accuracy of the traditional surface of reflector can assure that 90% of all the light energy can be focused on within the angle diameter range of the minimum atmosphere seeing then 100% of light energy should be focused on the angle diameter range of minimum atmosphere seeing. Because the rms of mirror is very high precise surface machining and accurate the support of mirror are very important tasks during designing and manufacturing the telescope. In the paper various support techniques of a large-aperture telescope primary mirror are discussed and a 3.5 meter telescope system at the Starfire Optical Range (SOR) overviewed simply which was operated by the Directed Energy Directorate of the Air Force Research Laboratory Kirtland AFB NM USA from the ground-based O-E system for the observations of spatial target. We also analyze Theoretical elastic deformation of the Steward Observatory 2.3 meter mirror is analyzed.
	Ocean wave imaging mechanism by imaging radar 期刊论文 OAI收割 SCIENCE IN CHINA SERIES D-EARTH SCIENCES, 2000, 卷号: 43, 期号: 6, 页码: 587-595 作者: He, YJ \| 收藏 \| 浏览/下载：11/0 \| 提交时间：2010/12/22 Synthetic Aperture Radar Real Aperture Radar Ocean Wave Imaging Mechanism