机构

• 国家天文台 [3]
• 长春光学精密机械与物... [1]
• 国家授时中心 [1]

采集方式

• OAI收割 [5]

内容类型

• 期刊论文 [4]
• 会议论文 [1]

发表日期

• 2020 [2]
• 2019 [2]
• 2008 [1]

学科主题

筛选

浏览/检索结果: 共5条，第1-5条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 The update of BDS-2 TGD and its impact on positioning 期刊论文  OAI收割 ADVANCES IN SPACE RESEARCH, 2020, 卷号: 65, 期号: 11, 页码: 2645-2661 作者:  Zhang, Yize;  Chen, Junping;  Gong, Xiuqiang;  Chen, Qian   |  收藏  |  浏览/下载：34/0  |  提交时间：2021/12/06 Timing group delay  Differential code bias  Signal-in-space range error  Single point positioning  Precise point positioning   Calibration and Impact of BeiDou Satellite-Dependent Timing Group Delay Bias 期刊论文  OAI收割 REMOTE SENSING, 2020, 卷号: 12, 期号: 1, 页码: 17 作者:  Zhang, Yize;  Wang, Hu;  Chen, Junping;  Wang, Ahao;  Meng, Lingdong   |  收藏  |  浏览/下载：38/0  |  提交时间：2021/09/26 BeiDou navigation satellite system  broadcast ephemeris  timing group delay  differential code bias  signal-in-space range error  single point positioning   Apparent clock and TGD biases between BDS-2 and BDS-3 期刊论文  OAI收割 GPS SOLUTIONS, 2019, 卷号: 24, 期号: 1, 页码: 15 作者:  Zhang, Yize;  Kubo, Nobuaki   |  收藏  |  浏览/下载：73/0  |  提交时间：2021/09/26 BeiDou navigation satellite system  Timing group delay  Signal-in-space range error  Single-point positioning  Real-time kinematic   Real-time BDS signal-in-space anomaly detection method considering receiver anomalies 期刊论文  OAI收割 IET RADAR SONAR AND NAVIGATION, 2019, 卷号: 13, 期号: 12, 页码: 2220-2229 作者:     |  收藏  |  浏览/下载：33/0  |  提交时间：2021/11/29 satellite navigation  astronomical ephemerides  telecommunication network reliability  signal detection  signal-in-space user range error  SIS URE  real-time navigation  positioning users  real-time SIS anomalies  location services  BeiDou satellites  user range accuracy index  navigation ephemeris  anomaly detection threshold  real-time observation data  receiver anomalies  BeiDou Navigation Satellite System  MultiGlobal Navigation Satellite System Experiment  precise ephemeris detection results  real-time BDS signal-in-space anomaly detection method  IURE  international GNSS Monitoring &  Assessment System   UV-VUV spectral irradiance responsivity calibration for space remote sensing spectroradiometer (EI CONFERENCE) 会议论文  OAI收割 Advanced Materials and Devices for Sensing and Imaging III, November 12, 2007 - November 14, 2007, Beijing, China 作者:  Yu H. 收藏  |  浏览/下载：29/0  |  提交时间：2013/03/25 In order to overcome the irradiance responsivity calibration troubles caused by the weak response of most spectral radiometers in ultraviolet band and poor ratio of signal to noise  and to meet special calibration condition for some remote sensing spectroradiometers in space  a spectral irradiance responsivity calibration unit based on parallel light illumination mode is established  it is composed of a 150W deuterium lamp and a spherical mirror. The calibration unit gets the output standard value of spectral irradiance by irradiance transfer  this way avoids the spectral reflectance measurement difficulty of the spherical mirror. A flight spectral radiometer model used for space remote sense was calibrated in range from 160nm to 300nm  the calibration error of spectral irradiance responsivity is 4.7%. Some factors which contribute to calibration uncertainties are discussed.