中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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Accurate Implicit Neural Mapping With More Compact Representation in Large-Scale Scenes Using Ranging Data 期刊论文  OAI收割
IEEE ROBOTICS AND AUTOMATION LETTERS, 2023, 卷号: 8, 期号: 10, 页码: 6683-6690
作者:  
Shi, Chenhui;  Tang, Fulin;  Wu, Yihong;  Jin, Xin;  Ma, Gang
  |  收藏  |  浏览/下载:70/0  |  提交时间:2023/11/16
Non data-aided estimation of modulation index of USB TT&C waveform with sinusoidal tone 期刊论文  OAI收割
DIGITAL SIGNAL PROCESSING, 2023, 卷号: 139, 页码: 16
作者:  
Chu, Ziyue
  |  收藏  |  浏览/下载:60/0  |  提交时间:2023/12/13
Mid-late Pleistocene glacial evolution in the Grove Mountains, East Antarctica, constraints from cosmogenic Be-10 surface exposure dating of glacial erratic cobbles 期刊论文  OAI收割
QUATERNARY SCIENCE REVIEWS, 2016, 卷号: 145, 期号: 0, 页码: 71-81
作者:  
Dong, GC (Dong, Guocheng);  Huang, FX (Huang, Feixin);  Caffee, MW (Caffee, Marc W.);  Huang, FX;  Yi, CL (Yi, Chaolu)
  |  收藏  |  浏览/下载:43/0  |  提交时间:2017/09/26
Glacial HisTories From The East Antarctic Ice Sheet (Eais) Provide Keys To UnderstAndIng Correlations Between The Eats And Global Climate. They Are Especially Helpful In The Assessment Of Global Sea Level Change  And As a Means Of Quantifying The Magnitude Of pAst Glacial Activity And The RAte At Which Ice Responded To climAte Change. Given The Significance Of Eais Glacial hisTories  It Is Imperative That More Glacial Chronologic Data For thIs Region Be Obtained  Especially For The Mid-to-lAte Pleistocene. We Report Cosmogenic Be-10 Surface Exposure DAtIng Results From Glacially Transported Cobbles Embedded In Blue-ice moraIne MAterial At Mount hardIng  The Grove Mountains  Eais. Forty Exotic Cobbles Sampled AlOng Two PrOfiles (a And b) On This Blue-ice MoraIne Present Apparent Exposure-ages RangIng From 7.2 To 542.2 Ka. We Explore This Scattered Dataset By UsIng PrIncipal compOnent Analysis (Pca) To Identify Statistically Significant Trends In The Data. We Identify a correlatiOn betWeen Exposure-age And Distance Of The Cobbles From Mount hardIng. In prOfile a  Cobbles Further From Mount HardIng Yield Older Exposure-ages Than Those That Are Relatively Close. In Profile b  Cobbles Closer To Mount HardIng Are Found To Have Relatively Older Exposure-ages. In Term Of Glacial hisTory We Suggest That The Direction Of Ice Flow Changed durIng The Period From Similar To 60 To 200 Ka  And That Multiple Glacial Fluctuations Occurred In The Mid-late Pleistocene. (c) 2016 Elsevier Ltd. All Rights Reserved.  
Building Outline Detection based on Height and Intensity information of Airborne Laser Scanning Data 会议论文  OAI收割
Mippr 2011: Multispectral Image Acquisition, Processing, and Analysis
Wang Chengyi; Liang Fuyuan; Zhengyi
收藏  |  浏览/下载:30/0  |  提交时间:2014/12/07
Research of error correction of LEO satellite orbit prediction for vehicle-borne tracking and position device (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
作者:  
Wang J.-J.;  Guo L.-H.
收藏  |  浏览/下载:54/0  |  提交时间:2013/03/25
Vehicle-borne tracking and position device is used to track LEO satellite. Because of the absence of the target which might be caused by cloud or zenith blind zone  the forecasting data will be used to acquire the target. While orbit prediction has serious errors  the target is always missed. Meanwhile  in its application to the vehicle-borne tracking and position device  due to the base of instability in the tracking process  it will result in significant difference between predicting data and tracking data  so the target will be not tracked rapidly. We applied tracking data to predict satellite orbits by improving Laplace method  and then corrected the error between Predicted data and actual measured data by interpolation method of Lagrange which improves the accuracy of prediction values. The testing data shows the accuracy of predicted data ranging from 3' to 10" for both azimuth and elevation when extrapolated satellite orbit to 7 seconds time. 2010 IEEE.  
Recent progress on asphere manufacturing and testing at CIOM (EI CONFERENCE) 会议论文  OAI收割
Advanced Optical Manufacturing and Testing Technology 2000, November 1, 2000 - November 3, 2000, Chengdu, China
作者:  
Zhang X.
收藏  |  浏览/下载:42/0  |  提交时间:2013/03/25
The manufacturing procedure of a 500 mm in diameter  f/2 hyperbolic primary mirror based on Computer-Controlled Polishing is introduced in detail. The mirror was finally polished to the shape accuracy of 13 nm rms and the surface roughness of 2 nm Ra. Testing methods and data analysis for different stages ranging from grinding to polishing are discussed. Some critical factors affecting the efficiency and accuracy of the grinding/polishing procedure are summarized. In addition  the preliminary work to make large off-axis asphere mirrors is presented. The difficulties in polishing and testing for both circular aperture and rectangular aperture mirrors are previewed  and a possible solution is given. To control the geometrical parameters such as radius of curvature and conic constant  a new profiler has been built  and it has proven very useful to improve the grinding efficiency. Finally  the manufacturing of small aspheres using deterministic grinding tool is also introduced. The fine grinding procedure of LOH's asphere grinding machine is presented.  
Improved estimation of earth rotation parameters using the adaptive ridge regression 期刊论文  OAI收割
EARTH MOON AND PLANETS, 1998, 卷号: 81, 期号: 2, 页码: U26-143
作者:  
Huang, CL;  Jin, WJ
收藏  |  浏览/下载:43/0  |  提交时间:2010/07/30