Results 51 to 60 of about 8,142 (251)

A Station-Specific Ionospheric Modeling Method for the Estimation and Analysis of BeiDou-3 Differential Code Bias Parameters

Navigation, 2022
A modified generalized trigonometric series (GTS) function is presented for the joint estimation of local ionospheric activities and differential code biases (DCBs) of the third-generation BeiDou navigation satellite system (BeiDou-3).
Ningbo Wang, Zishen Li, Andrzej Krankowski, Xingliang Huo   +3 more
doaj   +1 more source

Optimized Design and Analysis of Offshore Beidou Maritime Foundation Reinforcement System Pseudolite Ranging-Codes

Polish Maritime Research, 2017
Under the bad sea conditions and weak Beidou navigation signal environment, it is difficult to locate the ship on the sea, and the Beidou navigation system can’t work well.
Su Deliang, Zhou Anan, Zhou Zilin, Chen Wei   +3 more
doaj   +1 more source

Analysis of multi-constellation GNSS signal quality [PDF]

, 2016
The code pseudo-ranges and phase pseudo-ranges are affected by the systematic errors or biases and random noises. These errors can be classified into three groups, satellite related errors, propagation-medium related errors and receiver related errors ...
Hill, Chris, Moore, Terry, Richardson, Terri, Toor, Pieter   +3 more
core   +3 more sources

Assumption of application research of field communication system for seismic emergency based on BeiDou Navigation Satellite System

地震科学进展, 2020
After a destructive earthquake occurs, the traditional ground communication network will be severely damaged or even paralyzed, and cannot guarantee the emergency needs of data transmission, emergency communications, command dispatch between the front ...
Xiaoping Ma, Wenkai Chen, Shaolin He, Antai Gao, Rui Zhu, Anguo Liu   +5 more
doaj   +1 more source

A novel ambiguity resolution model of BeiDou navigation satellite system/inertial navigation system tightly coupled for kinematic-to-kinematic precise relative positioning

International Journal of Distributed Sensor Networks, 2022
The carrier-based kinematic-to-kinematic relative positioning can obtain the precise baseline between two moving stations, which greatly expands the application field of dynamic relative positioning.
Ling Wu, Yongrong Sun, Xiyu Fu, Qinghua Zeng   +3 more
doaj   +1 more source

China Offshore Data Translation Net and Information Integration and Release Platform [PDF]

, 2012
China offshore marine observation station of Chinese academy of sciences consists of dozens of marine observation buoy system, which are spread in China's offshore to obtain the long-term continuous oceanographic elements.
Yonghua, Chen
core   +1 more source

Performance and requirements of GEO SAR systems in the presence of Radio Frequency Interferences [PDF]

, 2018
Geosynchronous Synthetic Aperture Radar (GEO SAR) is a possible next generation SAR system, which has the excellent performance of less than one-day revisit and hundreds of kilometres coverage.
Guarnieri, Andrea Monti, Hu, Cheng, Li, Yuanhao, Rocca, Fabio   +3 more
core   +2 more sources

Large-scale and long-distance distributed explosion sound wave test system

Dianzi Jishu Yingyong, 2022
A large-scale and long-distance distributed explosion sound wave test system based on BeiDou satellite navigation system and LoRa wireless communication technology is proposed for the characteristics test of the acoustic signal in the far field of the ...
Wang Maokai, Lai Fuwen, Zhao Yongfeng, Kong Fansheng, Wang Wenlian   +4 more
doaj   +1 more source

Review of code and phase biases in multi-GNSS positioning [PDF]

, 2016
A review of the research conducted until present on the subject of Global Navigation Satellite System (GNSS) hardware-induced phase and code biases is here provided. Biases in GNSS positioning occur because of imperfections and/or physical limitations in
A Al-Shaery, A Leick, A Tetewsky, Anna B. O. Jensen, B Hoffman-Wellenhof, C Cai, C Deng, D Laurichesse, D Odijk, E Sardon, GE Lanyi, Gunnar Hedling, H He, J Chen, J Geng, J Kouba, J Paziewski, J Tegedor, J-M Sleewaegen, JF Zumberge, JM Dow, L Wanninger, M Ge, Martin Håkansson, Milan Horemuz, P Collins, P Teunissen, PJG Teunissen, PJG Teunissen, S Banville, S Banville, S Chuang, S Gleason, W Bertiger, X Li, Y Gao   +35 more
core   +1 more source

Freshly Generated Super Sunrise Plasma Bubbles During the Geomagnetic Storm on November 5–6, 2023

Space Weather, Volume 24, Issue 1, January 2026.
Abstract During the geomagnetic storm on November 5–6, 2023, freshly generated super sunrise equatorial plasma bubbles (EPBs) and associated irregularities over the 80°–140°E sector were observed combining ground‐based and space observations from GNSS, ionosondes, HF Doppler records, and several satellite missions (COSMIC2, Swarm, and DMSP).
Ke Li, Donghe Zhang, Yaoyu Tian, Yi Zeng, Guanglin Yang, Xiukuan Zhao, Guozhu Li, Yongqiang Hao   +7 more
wiley   +1 more source