Results 101 to 110 of about 2,505 (209)

BDS-3 Time Group Delay and Its Effect on Standard Point Positioning

Remote Sensing, 2019
The development of the BeiDou navigation system (BDS) is divided into three phases: The demonstration system (BDS-1), the regional system (BDS-2) and the global BeiDou navigation system (BDS-3).
Peipei Dai, Yulong Ge, Weijin Qin, Xuhai Yang   +3 more
doaj   +1 more source

An open-source software-defined radio collection for GNSS receivers [PDF]

, 2022
The master's thesis has as a main objective to encompass the progress and efforts dedicated to the development and improvement of an open-source collection of Software-Defined Radios (SDR) for Global Navigation Satellite Systems (GNSS).
Bernabeu Frias, Joan Miguel
core  

A Real-Time Detection Method for BDS Signal in Space Anomalies

Sensors, 2019
Signal In Space (SIS) anomalies in satellite navigation systems can degrade satellite-based navigation and positioning performance. The occurrence of SIS anomalies from the BeiDou navigation satellite System (BDS) may be more frequent than for the Global
Chun Cheng, Yuxin Zhao, Liang Li, Lin Zhao   +3 more
doaj   +1 more source

BDS satellite clock offset prediction based on a semiparametric adjustment model considering model errors

Satellite Navigation, 2020
In view of the influence of model errors in conventional BeiDou prediction models for clock offsets, a semiparametric adjustment model for BeiDou Navigation Satellite System (BDS) clock offset prediction that considers model errors is proposed in this ...
Xiong Yan, Wentao Li, Yufeng Yang, Xiong Pan   +3 more
doaj   +1 more source

Low-cost, high-precision, single-frequency GPS–BDS RTK positioning [PDF]

, 2017
The integration of the Chinese BDS with other systems, such as the American GPS, makes precise RTK positioning possible with low-cost receivers. We investigate the performance of low-cost ublox receivers, which cost a few hundred USDs, while making use ...
AR Amiri-Simkooei, AR Amiri-Simkooei, AR Amiri-Simkooei, B Li, B Li, B Schaffrin, B Wisniewski, C Miller, D Odijk, G Wang, H He, HJ Euler, M Wang, N Nadarajah, O Montenbruck, P Bona, Peter J. G. Teunissen, PJG Teunissen, PJG Teunissen, PJG Teunissen, PJG Teunissen, PJG Teunissen, R Odolinski, R Odolinski, Robert Odolinski, S Verhagen, S Zaminpardaz, Y Jiang   +27 more
core   +1 more source

Using GIS and Remote Sensing to build Master Sampling Frames for Agricultural Statistics [PDF]

, 2015
This report is a JRC contribution to the FAO Global Strategy to improve Agricultural and Rural Statistics (GSARS). Its aim is providing guidelines on the suitable ways to use satellite images and geographic information tools to build master sampling ...
GALLEGO PINILLA Francisco, KERDILES Herve, LEO Olivier   +2 more
core   +1 more source

gLAB upgrade with BeiDou navigation system signals [PDF]

, 2015
The gLAB tool suit is an educational and professional multipurpose GNSS data processing software. It has been developed by gAGE/UPC under a contract of the European Space Agency (ESA). The current version of gLAB allows full GPS data processing with High
Wang, Xiaoli
core  

A BeiDou Signal Acquisition Approach Using Variable Length Data Accumulation based on Signal Delay and Multiplication

, 2020
The secondary modulation with the NeumannHoffman code increases the possibility of bit sign transition. Unlike other GNSS signals, there is no pilot component for synchronization in BeiDou B1/B3 signals, which increases the complexity in acquisition.
Liu, Zhiyang, Wang, Qiqi, Wu, Hong, Yang, Menghuan, Zhao, Yingxin   +4 more
core   +1 more source

and Navigation Group at DLR’s German Space Operations [PDF]

member of the Executive and Governing Board of ...
C. Rizos, Multi-gnss Service, Of Geodesy, R. Weber, Technische Universität München (tum/iapg, Technische Universität Wien (tuw, Tu Vienna, Urs Hugentobler   +7 more
core  

The Design and Analysis of a Lunar Navigation SmallSat for Southern Hemisphere Moon Navigation

IEEE Access
Being Earth’s only natural satellite, the moon is crucial for human space exploration and serves as a vital base for additional deep space endeavors.
Xiao Chen, Yong Zheng, Lan Du, Zhongkai Zhang   +3 more
doaj   +1 more source