作者: enterprise 時間: 2025-3-21 20:20
Research on Communication Delay Model for Narrow Beam Inter-satellite Links in a TDMA Systemon and adjusting the unreasonable connection in time. In this paper, a communication time delay model for ISLs based on directed graphs is studied. By abstracting the ISL timeslot table into a directed graph, and based on the shortest path algorithm, the communication time delay can be obtained quic作者: 基因組 時間: 2025-3-22 01:09 作者: PHAG 時間: 2025-3-22 07:19
A New Algorithm for Receiver Integrity Monitoring with Receiver Clock Error Auxiliaryion method, fault detection method and fault identification method. Among these key steps, threshold determination method are fully discussed and validated. Results show that the threshold determination method is proper in the method. Finally, the performance and feasibility of the proposed algorith作者: Flavouring 時間: 2025-3-22 10:43
Construction and Performance Analysis of GPS/BeiDou/Galileo Real-Time Augmentation SystemGSO/MEO and Galileo is about 10?cm and BeiDou GEO satellites’ is about 33?cm, respectively. The real-time Precise Point Positioning (PPP) results prove that 5–7?cm horizontal RMS and better-than 10?cm vertical RMS based on carrier-phase observation can be obtained.作者: 嚴峻考驗 時間: 2025-3-22 13:56 作者: 嚴峻考驗 時間: 2025-3-22 19:16 作者: CLAN 時間: 2025-3-22 23:23
Radiology: The Oral Boards Primeron and adjusting the unreasonable connection in time. In this paper, a communication time delay model for ISLs based on directed graphs is studied. By abstracting the ISL timeslot table into a directed graph, and based on the shortest path algorithm, the communication time delay can be obtained quic作者: Instinctive 時間: 2025-3-23 01:54 作者: 傾聽 時間: 2025-3-23 06:39 作者: recede 時間: 2025-3-23 11:47 作者: 吝嗇性 時間: 2025-3-23 15:44
Patient Radiation Safety and RiskBeidou system, the IPP position formed by the reference station observing GEO satellites is almost fixed, so we introduce the Beidou GEO satellite observations in this paper, the accurate time variogram model was obtained and the improved Kriging algorithm for the Chinese region is given. In this pa作者: Arteriography 時間: 2025-3-23 21:54
Gloved Finger Sign or Toothpaste Signts, and the particle degeneration is restrained. On this basis, the smoothed residual test statistics is set up for satellite fault detection and isolation. The simulation results show that RAIM algorithm based on robust extended Kalman particle filter and smoothed residual can well detect and isola作者: 陪審團 時間: 2025-3-24 01:45
China Satellite Navigation Conference (CSNC) 2017 Proceedings: Volume II978-981-10-4591-2Series ISSN 1876-1100 Series E-ISSN 1876-1119 作者: Pericarditis 時間: 2025-3-24 03:46 作者: fatuity 時間: 2025-3-24 08:27 作者: ELUDE 時間: 2025-3-24 11:11
Jacob Van Dyk,Jerry J. Battistaent code pseudorange bias, which can be as much as 1?m and degrade the performance of high-precision applications such as Precise Point Positioning (PPP). Mechanism analysis on the cause of the bias has been absent in previous literature, which is essential to avoid the issue from happening again in作者: compel 時間: 2025-3-24 17:50 作者: EWER 時間: 2025-3-24 21:58
Sahar N. Saleem,Youssriah Y. Sabrifective carrier power-to-noise density ratio (.) and its degradation are important criteria to evaluate the degree of interference between Global Navigation Satellite Systems (GNSS). In order to simplify the analysis process and computational complexity, the cross-correlation items between desired s作者: 高射炮 時間: 2025-3-25 02:27 作者: 單純 時間: 2025-3-25 06:44 作者: 不再流行 時間: 2025-3-25 10:04 作者: 昏迷狀態(tài) 時間: 2025-3-25 12:15
R. B. Gunderman,K. B. Williamson especially in urban canyon environment, has received much attention in academic and industrial circles. In order to get multipath model in the real urban canyon environment, the real GNSS IF signal data is collected in Shanghai typical urban canyon area. Code phase delay, carrier phase changing rat作者: 命令變成大炮 時間: 2025-3-25 19:00 作者: Hearten 時間: 2025-3-25 23:59
Introduction to Nuclear Medicineompared for various solar activity conditions and different latitudes for China and around areas. It shows that the ionospheric anomaly in low-latitude areas impacts the variogram seriously, causing a larger intercept at zero distance and a “bump” at the distance of about 1000?km. An alternative met作者: 身心疲憊 時間: 2025-3-26 02:29 作者: 逗留 時間: 2025-3-26 07:52
Harjit Singh MD, FSIR,Janet A Neutze MDomous integrity monitoring (RAIM) and auxiliary autonomous integrity monitoring. Apart from the redundant observations of the receiver are used for RAIM, there are various parameter information provided form receiver and the receiver clock error is one of them.?As the stability of the receiver oscil作者: 仔細檢查 時間: 2025-3-26 12:23
Introduction to Nuclear Medicineme Slot (FTS) is proposed for GNSS constellation in this paper. Firstly, we model a GNSS constellation network as a FTS, where each time slot corresponds to an equal-length interval in system period of the GNSS network. Then, we formulate link assignment as a mixed integer linear programming problem作者: custody 時間: 2025-3-26 13:35 作者: 金盤是高原 時間: 2025-3-26 18:22 作者: 暴露他抗議 時間: 2025-3-26 21:00
Radiology Illustrated: Chest Radiologyeric spatial threat model is introduced to over-bound residual errors in delay estimation for this under-sampled scenario. Ionospheric anomaly existing in low latitude areas exerts considerable influence on threat model realization. Methods are presented to construct spatial threat model for China a作者: tic-douloureux 時間: 2025-3-27 04:31 作者: impaction 時間: 2025-3-27 06:56 作者: deciduous 時間: 2025-3-27 12:16 作者: 敵意 時間: 2025-3-27 14:03
Jiadong Sun,Jingnan Liu,Wenxian YuCollects selected CSNC2017 papers.Showcases achievements and progress of BDS.Presents the latest studies of Global Navigation Satellite System in China.Covers hot topics in Global Navigation Satellite作者: 結束 時間: 2025-3-27 18:24 作者: 千篇一律 時間: 2025-3-27 22:48 作者: 脫毛 時間: 2025-3-28 04:47 作者: abracadabra 時間: 2025-3-28 08:34 作者: VALID 時間: 2025-3-28 11:32 作者: 箴言 時間: 2025-3-28 18:28
The Effect of Cross-Correlation Items on the Intersystem Interference Between GPS, BDS and Galileofective carrier power-to-noise density ratio (.) and its degradation are important criteria to evaluate the degree of interference between Global Navigation Satellite Systems (GNSS). In order to simplify the analysis process and computational complexity, the cross-correlation items between desired s作者: Coordinate 時間: 2025-3-28 22:49 作者: notion 時間: 2025-3-29 01:21
An Implementation of Navigation Message Authentication with Reserved Bits for Civil BDS Anti-Spoofinions of NMA may cause a failure in legacy GNSS receiver to process civil GNSS signal. This paper proposes an implementation of NMA applying reserved bits as signature area. Digital signature and key chain algorithms are employed to improve security and efficiency of the implement. In additional, per作者: 無法取消 時間: 2025-3-29 04:47 作者: Obstruction 時間: 2025-3-29 08:35
Study on Multipath Model of BDS/GPS Signal in Urban Canyon especially in urban canyon environment, has received much attention in academic and industrial circles. In order to get multipath model in the real urban canyon environment, the real GNSS IF signal data is collected in Shanghai typical urban canyon area. Code phase delay, carrier phase changing rat作者: EXPEL 時間: 2025-3-29 11:24
An Efficient Algorithm for Determining the Correspondence Between DFREI and σDFRE for a Dual-Frequen system (SBAS) providers are currently developing the dual-frequency multi-constellation (DFMC) SBAS interface control document (ICD) to take advantage of the four GNSSs and two signals. In order to ensure the interoperability, a SBAS provider is allowed to determine the correspondence between DFREI作者: lanugo 時間: 2025-3-29 19:37
Analysis on Ionospheric Delay Variogram Modeling in Chinaompared for various solar activity conditions and different latitudes for China and around areas. It shows that the ionospheric anomaly in low-latitude areas impacts the variogram seriously, causing a larger intercept at zero distance and a “bump” at the distance of about 1000?km. An alternative met作者: 半圓鑿 時間: 2025-3-29 21:32
Scintillation Modeling and Its Application in GNSSd signal propagating model. Irregularity strength model describes the spatial and temporal variation of strength of scintillation-producing irregularities. The model could be represented in terms of solar activity, magnetic latitudes, season and local time, and the coefficients are derived with meas作者: Contort 時間: 2025-3-30 03:19
A New Algorithm for Receiver Integrity Monitoring with Receiver Clock Error Auxiliaryomous integrity monitoring (RAIM) and auxiliary autonomous integrity monitoring. Apart from the redundant observations of the receiver are used for RAIM, there are various parameter information provided form receiver and the receiver clock error is one of them.?As the stability of the receiver oscil作者: Oration 時間: 2025-3-30 07:51 作者: instulate 時間: 2025-3-30 09:23
Construction and Performance Analysis of GPS/BeiDou/Galileo Real-Time Augmentation SystemSS high-precision fusion applications. In this paper, the algorithm of multi-GNSS real-time clock fusion estimation is studied deeply, the real-time augmentation message processing strategy is also discussed and real-time orbit data processing and analysis are carried out based on PANDA software. Th作者: nutrients 時間: 2025-3-30 13:31
An Improved Algorithm of Ionospheric Grid Correction Based on GPS and Compass Multi-constellationhich is the major problem in the building of the Beidou SBAS. At present, the Wide Area Augmentation System (WAAS) uses the Kriging method to estimate the Grid Ionospheric Vertical Delay (GIVD) and Grid Ionospheric Vertical Delay Error (GIVE). On the basis of the traditional Kriging method, some dom作者: scoliosis 時間: 2025-3-30 19:43 作者: nominal 時間: 2025-3-30 21:36 作者: LUCY 時間: 2025-3-31 04:14
1876-1100 em in China.Covers hot topics in Global Navigation SatelliteThese proceedings present selected research papers from CSNC2017, held during 23th-25th May in Shanghai, China. The theme of CSNC2017 is Positioning, Connecting All. These papers discuss the technologies and applications of the Global Navig作者: STAT 時間: 2025-3-31 05:45
Conference proceedings 2017in the China BeiDou System (BDS) especially. They are divided into 12 topics to match the corresponding sessions in CSNC2017, which broadly covered key topics in GNSS. Readers can learn about the BDS and keep abreast of the latest advances in GNSS techniques and applications.
