In a research article recently published in Space: Science & Technology, researchers from Chinese Academy of Military Science, Tsinghua University, and Beihang University together work on how to ...

Applications requiring outdoor position estimation, such as unmanned construction and delivery automation, focus on receiving global navigation satellite system (GNSS) correction information from ...

Table 1 Operational BeiDou System satellites in orbit. The last launched BDS-3 GEO satellite C61 is not included, because it is still in the in-orbit testing phase when the paper is completed. Table 2 ...

Accurate smartphone positioning in dense urban environments remains challenging due to signal blockage, multipath effects, and unreliable satellite visibility. This study presents a new positioning ...

U.S. Space Force operators conduct Global Positioning System (GPS) electromagnetic interference training at Schriever Space Force Base, Colorado. Credit: U.S. Space Force photo by Ethan Johnson ...