中国科学院机构知识库网格系统: 检索

Localizability With Range-Difference Measurements: Numerical Computation and Error Bound Analysis 期刊论文 OAI收割
IEEE-ACM TRANSACTIONS ON NETWORKING, 2022, 页码: 14
作者: Zeng, Guangyang; Mu, Biqiang; Wei, Jieqiang; Wong, Wing Shing; Wu, Junfeng

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收藏 | 浏览/下载：50/0 | 提交时间：2022/06/21

Location awareness Noise measurement Error analysis Pollution measurement Measurement uncertainty Coordinate measuring machines Closed-form solutions Localization time difference of arrival (TDOA) nonconvex optimization numerical computation Lagrange multiplier

Coordinate dispatch of combined heat and power system based on approximate dynamic programming 会议论文 OAI收割
Wuhan, China, October 30 - November 1, 2020
作者: Hu B(胡博); Liu D(刘鼎); Zang CZ(臧传治); Wang, Yue; Li WT(李婉婷)

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收藏 | 浏览/下载：47/0 | 提交时间：2021/03/14

combined heat and power coordinate dispatch real-time scheduling approximate dynamic programming wind power accommodation

Theory of quantum gravity beyond Einstein and space-time dynamics with quantum inflation 期刊论文 OAI收割
INTERNATIONAL JOURNAL OF MODERN PHYSICS A, 2015, 卷号: 30, 期号: 28-29, 页码: 1545002
作者: Wu, YL

收藏 | 浏览/下载：26/0 | 提交时间：2016/11/21

Quantum gravity bi-frame space-time spinnic and scaling gauge symmetries Gravifield coordinate-independence and gauge-invariance gravity equation beyond Einstein conservation laws quantum inflation

Design and calibration of the solar irradiance monitor (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者: Yang D.-J.; Gong C.-H.; Wang Y.-P.; Ye X.; Fang W.

收藏 | 浏览/下载：39/0 | 提交时间：2013/03/25

The solar irradiance monitor (SIM) with the design accuracy of 5 used to monitor the secular changes of the total solar irradiance on FY-3 satellite takes the sun-scanning measurement method on-orbit. Compared to the sun-tracking measurement method this method simplifies the structure and cuts the cost but the measuring accuracy is affected by the sun-synchronous orbit sunlight incidence angle and the installing angle of the SIM in the satellite. Through the ground calibration experiment studies on the affection of different sunlight incidence angles to the measurement accuracy. First by the satellite tool kit (STK) simulation software simulates the orbital parameters of the sun-synchronous satellite and calculates the Sun ascension and declination at any time. By the orbit coordinate transformation matrix gets the components of the Sun vectors to the axes of the satellite and base on the components designs the field of view and the installing angles of the SIM. Then designs and completes the calibration experiment to calibrate the affection of the incidence angles. Selecting 11 different angles between the sunlight and the satellite X-axis measures the total solar irradiance by the SIM at each angle and compares to the irradiances of the SIAR reference radiometers and gets the coefficient curves of the three channels of the SIM. Finally by the quadratic fitting gets the correction equations on the incidence angles: R 1=5.7110-52 -2.45310 -3+1.0302 R2=2.8410-5-1. 96510-3+1.0314 and R3 =1.7210 -52-4.18410-4+0.9946. The equations will aimprove the on-orbit measurement accuracy of the solar irradiance and are very important to the on-orbit data processing after the satellite launched. 2011 SPIE.

Lie algebra integral algorithm of travel-time calculation for pre-stack Kirchhoff depth migration 期刊论文 OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2010, 卷号: 53, 期号: 8, 页码: 1893-1901
作者: Zhang Lian-Ping; Liu Hong

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收藏 | 浏览/下载：20/0 | 提交时间：2018/09/26

Coordinate Transform Lie Algebra Integral Exponential Mapping Seismic Travel Time Lateral Velocity Variation

Lie algebra integral algorithm of travel-time calculation for pre-stack Kirchhoff depth migration 期刊论文 OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2010, 卷号: 53, 期号: 8, 页码: 1893-1901
作者: Zhang Lian-Ping; Liu Hong

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收藏 | 浏览/下载：15/0 | 提交时间：2018/09/26

Coordinate Transform Lie Algebra Integral Exponential Mapping Seismic Travel Time Lateral Velocity Variation

First attempt to overcome the disaster of Dirac sea in imaginary time step method 期刊论文 OAI收割
CHINESE PHYSICS C, 2009, 卷号: 33, 页码: 113-115
作者: Zhang Ying; Liang Hao-Zhao; Meng Jie

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收藏 | 浏览/下载：30/0 | 提交时间：2018/05/31

imaginary time step method Dirac equation Woods-Saxon potential axially deformed coordinate space

The temperature in Hawking radiation as tunneling 期刊论文 OAI收割
PHYSICS LETTERS B, 2009, 卷号: 671, 期号: 2, 页码: 310-313
作者: Zhang, Baocheng; Cai, Qing-Yu; Zhan, Ming-Sheng

收藏 | 浏览/下载：22/0 | 提交时间：2015/06/26

Horizon Tunneling Time coordinate Radiation temperature

Modeling of satellite borne TDI CCD pitching imaging image motion velocity vector (EI CONFERENCE) 会议论文 OAI收割
2009 IEEE International Conference on Automation and Logistics, ICAL 2009, August 5, 2009 - August 7, 2009, Shenyang, China
作者: Zhang L.; Li S.; Zhang L.

收藏 | 浏览/下载：20/0 | 提交时间：2013/03/25

In order to obtain three-dimensional observation effect with single satellite borne time delay and integrate charge coupled device (TDI-CCD) pitching imaging is required. More accurate real-time image motion velocity vector computational model of space camera is also necessary to make the imaging perfect. Imaging motion velocity vector computation model must be set up on image plane at pitching imaging. According to the geometric relationship between the pitching imaging space camera and the Earth's rotation motion satellite borne TDI CCD pitching imaging motion velocity vector model is derived by mapping the ground speed to the image plane and using coordinate transformation method. The numerical simulation results show that the image velocity model can reduce deviation angle error about 33' and about 30% image motion speed error compared to traditional ground velocity model. 2009 IEEE.

Study of high precision non-contact measurement based on CCD (EI CONFERENCE) 会议论文 OAI收割
4th International Conference on Information Technology and Applications, ICITA 2007, January 15, 2007 - January 18, 2007, Harbin, China
Lin L.; Yun F.

收藏 | 浏览/下载：24/0 | 提交时间：2013/03/25

In this paper a method that measures relatively positionrelationshipquickly and accurately between two vehicles both on a horizontal plane is introduced. When the linear CCD camera placed on the end of manipulator scans two point targets located on the other vehicle by virtue of the spatial intersection principle and trigonometry theorem the relative position relationship between the loading vehicles and launching ones can be gotten(i.e. the spatial coordinate parameters of x y z and the angle displacement ). At the same time the paper establishes that the measurement error of length is less than 1mm by analysis of thee rror analysis and the simulation of computer. The angle displacement is less than 3 which satisfies the technical requests. So the vehicle orientation and loading missiles can be both done at the shortest time. It meets the demand of centralization between the measurement and execution. Forboth automatic transshipment and spatial position relationship measurement the study is valuable. And the manipulator is measure device as well as executive one so that residual inherent error decreases according to identical reference principle. Therefore the measure precision can be improved greatly.