Results 1 to 10 of about 5,771 (200)
Precise Point Positioning with the BeiDou Navigation Satellite System [PDF]
Sensors, 2014 By the end of 2012, China had launched 16 BeiDou-2 navigation satellites that include six GEOs, five IGSOs and five MEOs. This has provided initial navigation and precise pointing services ability in the Asia-Pacific regions.
Qile Zhao, Jing Guo, Xing Su
exaly +8 more sources
Initial Results of the Precise Orbit Determination for the New-Generation BeiDou Satellites (BeiDou-3) Based on the iGMAS Network [PDF]
ISPRS International Journal of Geo-Information, 2016 By August 2016, 5 new-generation BeiDou satellites (BeiDou-3) have successfully been launched. The observations of a very limited number of 9 International GNSS (Global Navigation Satellite System) Monitoring and Assessment Service (iGMAS) stations and ...
Xifeng Liu, Yafei Ning, Bingfeng Tan
exaly +6 more sources
Sensors, 2018 In 2015, the plan for global coverage by the Chinese BeiDou Navigation Satellite System was launched. Five global BeiDou experimental satellites (BeiDou-3e) are in orbit for testing.
Xiaolong Xu
exaly +4 more sources
FFAE-UNet: An Efficient Pear Leaf Disease Segmentation Network Based on U-Shaped Architecture [PDF]
SensorsThe accurate pest control of pear tree diseases is an urgent need for the realization of smart agriculture, with one of the key challenges being the precise segmentation of pear leaf diseases.
Wenyu Wang +4 more
doaj +2 more sources
Agriculture, 2023 Image datasets acquired from orchards are commonly characterized by intricate backgrounds and an imbalanced distribution of disease categories, resulting in suboptimal recognition outcomes when attempting to identify apple leaf diseases.
Jie Ding +6 more
doaj +1 more source
BMC Bioinformatics, 2022 Background Essential Proteins are demonstrated to exert vital functions on cellular processes and are indispensable for the survival and reproduction of the organism.
Yi Yue +7 more
doaj +1 more source
IdentPMP: identification of moonlighting proteins in plants using sequence-based learning models [PDF]
PeerJ, 2021 Background A moonlighting protein refers to a protein that can perform two or more functions. Since the current moonlighting protein prediction tools mainly focus on the proteins in animals and microorganisms, and there are differences in the cells and ...
Xinyi Liu +6 more
doaj +2 more sources
Design and implementation of clock synchronization scheme for mine distributed acquisition system
Gong-kuang zidonghua, 2021 Due to its accuracy and application limitations, single clock synchronization technology can not meet the high-precision and high-reliability clock synchronization accuracy requirements of the mine distributed acquisition system.
AN Sai
doaj +1 more source
Sensors, 2020 The secondary modulation with the Neumann-Hoffman 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.
Menghuan Yang +4 more
doaj +1 more source
ANALYSIS OF POSITIONING DEVIATION BETWEEN BEIDOU AND GPS BASED ON NATIONAL REFERENCE STATIONS IN CHINA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 In order to probe into the characteristics of positioning deviation between Beidou Navigation Satellite System (Beidou) and global positioning system (GPS), and investigate possible contribution of Beidou data to refinement of global coordinate system ...
M. Chen, Q. Zhang, Q. Zhang
doaj +1 more source