Results 101 to 110 of about 6,207 (200)

CPD-FCOS: A Scale-Isolated P2 Pathway for UAV Small-Object Detection

open access: yesRemote Sensing
Small objects in UAV imagery fail for two coupled reasons. Repeated downsampling destroys their evidence—60.5% of VisDrone instances are COCO-small and the median object spans 26 pixels, so a typical target covers fewer than four cells at stride 8—and ...
Chaowen Xie   +6 more
doaj   +1 more source

Anomalies of land-atmospheric parameters in the 2023 Turkey earthquake (Mw7.8) using GNSS and ERA5

open access: yesGeomatics, Natural Hazards & Risk
The Turkey earthquake (Mw 7.8) caused severe damage to Turkey and Syria on Feb. 6, 2023. It was observed that anomalies of land surface and atmospheric multi-parameters were associated with the land–atmosphere–ionosphere coupling (LAIC) mechanism.
Li Li   +7 more
doaj   +1 more source

Stochastic Models of Very High-Rate (50 Hz) GPS/BeiDou Code and Phase Observations

open access: yes, 2017
In recent years, very high-rate (10–50 Hz) Global Navigation Satellite System (GNSS) has gained a rapid development and has been widely applied in seismology, natural hazard early warning system and structural monitoring.
Rongxin Fang, Jingnan Liu, Yuanming Shu
core   +1 more source

Research on the linkage technology of electric power operation field video and Beidou high-precision positioning terminal

open access: yes
In order to adapt to the trend of intelligent development in power operation sites and solve practical problems such as inadequate supervision of traditional power operation sites, this article mainly studies the linkage technology between power ...
Yihao Wei   +6 more
core   +1 more source

Chinese Beidou and the Next Generation GNSS [PDF]

open access: yesJournal of Navigation, 2011
Kefei Zhang, Jingnan Liu, Yuanxi Yang
openaire   +1 more source

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