Research in Astronomy and Astrophysics CONTENTS     

《中国天文和天体物理学报》2014,(12)

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Spectral information from fourier analysis of digitized quartz grain profiles     

John D. Boon III  David A. Evans  Harold F. Hennigar 《Mathematical Geology》1982,14(6):589-605

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红外相机CASCAM光学设计   总被引：1，自引：1，他引：0  

季春宏  姚永强  长岛千惠  佐藤修二 《天文学报》2003,44(4):390-404

介绍紫金山天文台研制的光学-近红外相机CASCAM（Chinese Academy of Science，CAMera)的光学系统设计．CASCAM相机以红外列阵HAWAII-1和光学CCD为探测器，配备国家天文台兴隆观测站2．16米和1．26米望远镜进行0．4—2．5μm波长范围的成像和偏振成像观测．相机的光学系统由F／9→F／6缩焦系统和Offner反射成像系统构成．优化设计结果表明，光学设计方案已满足天文观测的要求．CASCAM相机在设计上实现了光学-近红外很宽波段的消色差变焦，并在楔形分柬片、常温滤光片轮和折射式焦面摆动技术等方面进行了新的尝试．  相似文献   

Meteor44 Video Meteor Photometry     

Wesley R. Swift  Robert M. Suggs  William J. Cooke 《Earth, Moon, and Planets》2004,95(1-4):533-540

Meteor44 is a software system developed at MSFC for the calibration and analysis of video meteor data. The photometric range of the (8 bit) video data is extended from a visual magnitude range of from 8 to 3 to from 8 to −8 for both meteors and stellar images using saturation compensation. Camera and lens specific saturation compensation coefficients are derived from artificial variable star laboratory measurements. Saturation compensation significantly increases the number of meteors with measured intensity and improves the estimation of meteoroid mass distribution. Astrometry is automated to determine each image's plate coefficient using appropriate star catalogs. The images are simultaneously intensity calibrated from the contained stars to determine the photon sensitivity and the saturation level referenced above the atmosphere. The camera's spectral response is used to compensate for stellar color index and typical meteor spectra in order to report meteor light curves in traditional visual magnitude units. Recent efforts include improved camera calibration procedures and long focal length "streak" meteor photometry. Meteor44 has been used to analyze data from the 2001, 2002 and 2003 MSFC Leonid observational campaigns as well as several lesser showers.  相似文献   

小型数码航空摄影测量应用初探   总被引：10，自引：2，他引：8  

张建霞  王留召  王宝山 《测绘科学》2006,31(6):85-86

数码航空摄影仪已成为摄影测量界当前关注和研究的重点。论文介绍了小型数码航空摄影测量的一般理论、作业流程与应用研究,着重介绍了利用超轻型飞机平台实施的低空数码航空摄影测量试验,并进行了可行性比较与结论性分析。最后阐明实施小型数码航空摄影测量的可行性与应用价值。  相似文献   

一种高精度轻小型航空遥感系统的集成与应用     

李军杰  关艳玲  左建章  刘宗杰 《测绘科学》2012,37(5):176-178

高精度轻小型航空遥感系统是一种灵活高效的遥感数据获取手段。本文将高精度大负载惯性稳定平台、高精度位置姿态测量系统、高精度组合宽角数字航测相机和动力伞集成为一种轻小型航空遥感系统,并进行了大比例尺遥感测绘和大型露天矿遥感监测应用航拍试验。经过对采集到的数据进行处理和分析,试验结果满足规范要求。  相似文献   

一种非量测相机近景影像外方位元素解算方法   总被引：2，自引：0，他引：2  

杨立君  刘轩  王嘉平 《测绘科学》2012,(1):17-19

本文提出了一种角椎体法和共线方程法联合解算非量测相机影像外方位元素的方法。工程应用证明该方法求解像片的外方位元素具有计算速度快、收敛性强、计算精度高等优点。  相似文献   

基于UCD+POS的1∶10000成图像控网布设方案的试验与研究     

王荣宝  张伟 《测绘与空间地理信息》2012,(7):176-178

2012年辽宁省测绘地理信息局将利用UCD+POS AV 510资料进行约30 000 km2的1∶10 000基本地形图更新。本文从用户的角度,以GeolordAT空三加密软件平台为基础,详细阐述了针对UCD+POS数据,进行资料分析、数据处理、空三加密的步骤、方法、精度和注意事项等,并得出切实可行的像控网布设方案。  相似文献   

基于有理函数模型的线阵CCD遥感影像水平纠正技术     

巩丹超  汤晓涛  张丽 《测绘科学技术学报》2012,(4):240-243,248

利用有理函数模型替代严格传感器模型已经成为当前高分辨率遥感影像通用的数据标准.对于附加有理函数模型系数的线阵CCD遥感影像,提出了一种利用反解有理函数模型实现倾斜像片与水平像片转换方法.其主要原理同传统框幅式倾斜影像与水平影像的转换相似:将倾斜像片上像点投影到物方水平面上;然后在物方水平面上根据原始倾斜像片的地面采样间...  相似文献   

Lens on Climate Change: Making Climate Meaningful Through Student-Produced Videos     

《The Journal of geography》2012,111(6):235-246

Learning about climate change is tangible when it addresses impacts that can be observed close to home. In this program, sixty-four diverse middle and high school students produced videos about locally relevant climate change topics. Graduate and undergraduate students provided mentorship. The program engaged students in research and learning about climate change, and sparked their interest in science careers. Evaluation results showed that students were highly motivated by the experience, developed a genuine interest in their science topic, learned about the scientific process, and developed twenty-first century skills. The program provided a unique and authentic approach to science learning and communication.  相似文献