中国科学院机构知识库网格系统: 检索

Accuracy and stability study of two-way time transfer in Cis-lunar space 期刊论文 OAI收割
CLASSICAL AND QUANTUM GRAVITY, 2025, 卷号: 42, 期号: 6
作者: Liu, Tong; Qin, Cheng-Gang; Pu, Jing-Hui; Yang YZ(杨永章); Wang, Wen-Bin

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收藏 | 浏览/下载：28/0 | 提交时间：2025/03/17

time transfer dual one way ranging Cis-lunar space orbit error relativistic effect

A Multiwavelength Study of PSR J1119-6127 after 2016 Outburst 期刊论文 OAI收割
ASTROPHYSICAL JOURNAL, 2020, 卷号: 902, 期号: 2, 页码: 11
作者: Wang, H-H; Lin, L. C-C; Dai, S.; Takata, J.; Li, K. L.

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收藏 | 浏览/下载：44/0 | 提交时间：2020/11/30

Penumbra Periodic variable stars Photographic astrometry Polar caps Proton-proton reaction X-ray bright point X-ray point sources Plasma astrophysics Phase error Phase effect Model selection Neutron stars

Applications of differential barometric altimeter in ground cellular communication positioning network 期刊论文 OAI收割
IET SCIENCE MEASUREMENT & TECHNOLOGY, 2020, 卷号: 14, 期号: 3, 页码: 322-331
作者: Hu, Zhengqun; Zhang, Lirong; Ji, Yuanfa

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收藏 | 浏览/下载：22/0 | 提交时间：2021/12/06

cellular radio height measurement measurement errors Global Positioning System altimeters barometers least squares approximations Kalman filters surface fitting spread spectrum communication compensation matrix algebra GPS signal message structure power spectrum spread spectrum ranging signal fitting parameters least-square solution calibration compensation system noise variance matrix measurement noise variance matrix multibase station correction height information correction calculation DBA system systematic performance differential barometric altimeter ground cellular communication positioning network measurement datum distribution altitude positioning error Global Positioning System differential barometric altimetry system systematic implementation level continuous altitude measurement precise altitude measurement DBA systematic implementation aspect two dimensional curved surface fitting function sensor measurement correction filtering effect Kalman filter measuring station multiBSs navigation fusion

Heavy ion irradiation induced hard error in MTJ of the MRAM memory array 期刊论文 OAI收割
MICROELECTRONICS RELIABILITY, 2019, 卷号: 100, 页码: 7
作者: Zhao, P. X.

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收藏 | 浏览/下载：24/0 | 提交时间：2022/01/19

MTJ damage Heavy ion Displacement damage Hard bit error Annealing effect

Possible atmospheric-like neutron beams at CSNS 期刊论文 OAI收割
RADIATION PHYSICS AND CHEMISTRY, 2018, 卷号: 152, 页码: 43-48
作者: Jing, HT; Ni, WJ; Zhang LY(张利英); Ou, L; Zhang, LY

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收藏 | 浏览/下载：38/0 | 提交时间：2019/09/24

Single event effect (SEE) Atmospheric-like neutron beam Spallation neutron source Soft error rate (SER) cross section

Error and jitter effect studies on the SLED for the BEPCII-linac 期刊论文 OAI收割
中国物理C, 2012, 期号: 5, 页码: 456-463
作者: Pei SL(裴士伦); Li XP(李小平); Xiao OZ(肖欧正)

收藏 | 浏览/下载：17/0 | 提交时间：2015/12/14

error effect jitter effect BEPC Ⅱ linac SLED RF pulse compressor

Error and jitter effect studies on the SLED for the BEPC II-linac 期刊论文 OAI收割
CHINESE PHYSICS C, 2012, 卷号: 36, 期号: 5, 页码: 456-463
作者: Pei SL(裴士伦); Li XP(李小平); 肖欧正;Pei, SL; Li, XP; Xiao, OZ

收藏 | 浏览/下载：39/0 | 提交时间：2016/04/08

error effect jitter effect BEPC II linac SLED RF pulse compressor

The effect of backlash nonlinear on resonance frequency of electric actuator transmission system (EI CONFERENCE) 会议论文 OAI收割
3rd IEEE International Conference on Advanced Computer Control, ICACC 2011, January 18, 2011 - January 20, 2011, Harbin, China
Han X.; Ge M.; Bai Y.; Jia H.; Ge W.

收藏 | 浏览/下载：22/0 | 提交时间：2013/03/25

In order to study the effect of backlash nonlinear on resonance frequency of electric actuator transmission system then Finally in the premise of meeting the stability the dynamic equilibrium equation of transmission system with backlash is established it makes dynamic simulation analysis for the transmission system based on virtual prototype technology it establishes balanced equation of dynamics system with backlash the effect of backlash on system natural frequency and resonance frequency and the theoretical values and simulation values are compared. Theoretical analysis and simulation results show that the theoretical analysis is basically consistent with simulation results when it is zero backlash and does some theory research and dynamic analysis of backlash nonlinearity and system natural frequency and resonance frequency. First and the error of theoretical analysis and simulation results is within 10%. Therefore according to describing function to theoretically model the backlash nonlinear it can be concluded that considering the transmission system theoretical analysis of backlash nonlinearity is feasible the relation between describing function and the amount of backlash and input amplitude is analyzed and it is much closer to the actual system with instructive significance. 2011 IEEE.

The error analysis of automated biochemical analyzer (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Computing, Information and Control, ICCIC 2011, September 17, 2011 - September 18, 2011, Wuhan, China
Qinghai C.; Yihui W.; Haiwen L.; Peng H.

收藏 | 浏览/下载：30/0 | 提交时间：2013/03/25

In order to find out the relationships between the four error sources namely locating error optics system fluctuations sampling error and temperature fluctuations and the accuracy of the instrument we analyzed each relationship of them and found that the effect of locating error is so tiny that it can be ignored finally established the total error model and the model of the allowed noise of the optics system of the instrument. Analysis and the models may supply a reliable theory evidence for the improvement of the instrument and the designing of similar instruments. 2011 Springer-Verlag.

Effect of gimbal point displacement on optical axis pointing precision in an image seeker (EI CONFERENCE) 会议论文 OAI收割
2011 International Conference on Electric Information and Control Engineering, ICEICE 2011, April 15, 2011 - April 17, 2011, Wuhan, China
作者: Zhang X.; Zhang X.; Zhang X.

收藏 | 浏览/下载：37/0 | 提交时间：2013/03/25

A concentric glass spherical dome was usually chosen as the transparent window mounted in front of the optical lens in an image seeker. However optical ray had to change its direction when propagating through the dome due to refraction unless passing through the center of the dome which demanded gimbal point coincide with the center of the dome exactly. In fact gimbal point displacement could not be eliminating due to fabrication assembly and vibration therefore the optical axis pointing error generated. In this paper the effect of gimbal point displacement on optical axis pointing precision in an image seeker was analyzed and the theoretical expression of the optical axis pointing error was derived based on geometric optics and the error dynamics was explored by numerical. Take a visible light image seeker as a case the thickness of concentric glass spherical dome was 8mm and the inner radius was 72mm and the optical axis pointing errors varying dynamically with the look angle and the gimbal point displacement were shown in graph. When the gimbal displacement was 0.11mm the maximum optical axis pointing error was 0.054mrad that is equal to the instantaneous field of view (IFOV) corresponding to the camera system whose focal length was 120mm and pixel size was 6.5m. Furthermore with the gimbal displacement increasing the optical axis pointing error increased linearly. The analyzed results provided a theoretical basis for the displacement range which had to be limited strictly in the gimbal design process. 2011 IEEE.