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浏览/检索结果: 共39条，第1-10条 帮助

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An Energy-Efficient Computing-in-Memory (CiM) Scheme Using Field-Free Spin-Orbit Torque (SOT) Magnetic RAMs 期刊论文  OAI收割
IEEE TRANSACTIONS ON EMERGING TOPICS IN COMPUTING, 2023, 卷号: 11, 期号: 2, 页码: 331-342
作者:  Wu, Bi;  Zhu, Haonan;  Reis, Dayane;  Wang, Zhaohao;  Wang, Ying
  |  收藏  |  浏览/下载：20/0  |  提交时间：2023/12/04
An Improved Altimeter in-Orbit Range Noise-Level Estimation Approach Based on Along-Track Differential Method 期刊论文  OAI收割
REMOTE SENSING, 2022, 卷号: 14, 期号: 24, 页码: 19
作者:  Liu, Xiaonan;  Kong, Weiya;  Sun, Hanwei;  Xu, Yongsheng;  Lu, Yaobing
  |  收藏  |  浏览/下载：10/0  |  提交时间：2023/11/16
In-Orbit Test of the Polarized Scanning Atmospheric Corrector (PSAC) Onboard Chinese Environmental Protection and Disaster Monitoring Satellite Constellation HJ-2 A/B 期刊论文  OAI收割
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2022, 卷号: 60
作者:  Li, Zhengqiang;  Xie, Yanqing;  Hou, Weizhen;  Liu, Zhenhai;  Bai, Zhaoguang
  |  收藏  |  浏览/下载：36/0  |  提交时间：2022/12/23
Review of in-space assembly technologies 期刊论文  OAI收割
Chinese Journal of Aeronautics, 2021, 卷号: 34, 期号: 11, 页码: 21-47
作者:  Xue ZH(薛智慧);  Liu JG(刘金国);  Wu CC(吴晨晨);  Tong YC(佟玉闯)
  |  收藏  |  浏览/下载：22/0  |  提交时间：2020/11/28
Mirrors for Space Telescopes: Degradation Issues 期刊论文  OAI收割
APPLIED SCIENCES-BASEL, 2020, 卷号: 10, 期号: 21
作者:  Garoli, Denis;  De Marcos, Luis V. Rodriguez;  Larruquert, Juan, I;  Corso, Alain J.;  Zaccaria, Remo Proietti
  |  收藏  |  浏览/下载：29/0  |  提交时间：2020/12/16
Comparison of simulated backgrounds with in-orbit observations for HE, ME, and LE onboard Insight-HXMT 期刊论文  OAI收割
Astrophysics and Space Science, 2020, 卷号: 365, 页码: 158
作者:  HXMT
  |  收藏  |  浏览/下载：48/0  |  提交时间：2022/02/08
Insight-HXMT  Geant4 simulation  Background observation  Astrophysics  - Instrumentation and Methods for Astrophysics  Abstract: Insight-HXMT, the first X-ray astronomical satellite in China, aims to reveal new sources in the Galaxy and to study fundamental physics of X-ray binaries from 1 to 250 keV. It has three collimated telescopes, the High Energy X-ray telescope (HE), the Medium Energy X-ray telescope (ME), and the Low Energy X-ray telescope (LE). Before the launch, in-orbit backgrounds of these three telescopes had been estimated through Geant4 simulation, in order to investigate the instrument performance and the achievement of scientific goals. In this work, these simulated backgrounds are compared with in-orbit observations. Good agreements are shown for all three telescopes. For HE, (1) the deviation of the simulated background rate after two years of operation in space is 5 % from the observation  (2) the total background spectrum and the relative abundance of the 67 keV line show long-term increases both in simulations and observations. For ME, (1) the deviation of simulated background rate is within 15 % from the observation, and (2) there are no obvious long-term increase features in the background spectra of simulations and observations. For LE, the background level given by simulations is also consistent with observations. The consistencies of these comparisons validate that the Insight-HXMT mass model, i.e., space environment components and models adopted, physics processes selected, and detector constructions built, is reasonable. However, the line features at 7.5 and 8.0 keV, which are obvious in the observed spectra of LE, are not evident in simulations. This might result from uncertainties in the LE constructions.  
Mirrors for Space Telescopes: Degradation Issues 期刊论文  OAI收割
APPLIED SCIENCES-BASEL, 2020, 卷号: 10, 期号: 21
作者:  Garoli, Denis;  De Marcos, Luis V. Rodriguez;  Larruquert, Juan, I;  Corso, Alain J.;  Zaccaria, Remo Proietti
  |  收藏  |  浏览/下载：16/0  |  提交时间：2021/12/01
An improved method for detecting BeiDou signal-in-space anomalies from precise ephemerides 期刊论文  OAI收割
ACTA GEODAETICA ET GEOPHYSICA, 2019, 卷号: 54, 期号: 4, 页码: 567-581
作者:  Fan, Lihong;  Tu, Rui;  Zhang, Rui;  Zheng, Zengji;  Lu, Xiaochun
  |  收藏  |  浏览/下载：34/0  |  提交时间：2020/11/09
Design and Analysis of Radiometric Calibration Mission in-orbit for Environment and Disasters Monitoring Satellite 会议论文  OAI收割
Yokohama, Japan, 2019-07-28
作者:  Zhu, Yang;  Zhu, Jun;  Bai, Zhaoguang;  Dong, Jun;  Wu, Bin
  |  收藏  |  浏览/下载：50/0  |  提交时间：2020/03/10
In-orbit Demonstration of X-Ray Pulsar Navigation with the Insight-HXMT Satellite 期刊论文  OAI收割
The Astrophysical Journal Supplement Series, 2019, 卷号: 244, 页码: 1
作者:  HXMT
  |  收藏  |  浏览/下载：13/0  |  提交时间：2022/02/08
pulsars: general  techniques: miscellaneous  Astrophysics -  Instrumentation and Methods for Astrophysics  Abstract: In this work, we report the in-orbit demonstration of X-ray pulsar navigation with Insight-Hard X-ray Modulation Telescope (Insight-HXMT) Satellite, which was launched on 2017 June 15. The new pulsar navigation method Significance Enhancement of Pulse-profile with Orbit-dynamics is adopted to determine the orbit with observations of only one pulsar. In this test, the Crab pulsar is chosen and observed by Insight-HXMT from 2017 August 31 to September 5. Using the five-day long observation data, the orbit of Insight-HXMT is determined successfully with the three telescopes onboard: High Energy X-ray Telescope, Medium Energy X-ray Telescope, and Low Energy X-ray Telescope, respectively. By combining all the data, the position and velocity of the Insight-HXMT are pinpointed to within 10 km (3ҩ and 10 m s-1 (3ҩ, respectively.