Results 1 to 10 of about 17,467 (267)

Estimation and evaluation of COSMIC radio occultation excess phase using undifferenced measurements [PDF]

Atmospheric Measurement Techniques, 2017
In the GPS radio occultation technique, the atmospheric excess phase (AEP) can be used to derive the refractivity, which is an important quantity in numerical weather prediction.
P. Xia, S. Ye, K. Jiang, D. Chen
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GPS + BDS Network Real-Time Differential Positioning Using a Position Domain Estimation Method

Remote Sensing, 2019
The network real-time differential positioning technique is a good choice for meter and sub-meter level’s navigation. More attention has been paid to the Global Positioning System (GPS) and GPS + GLONASS (GLObal NAvigation Satellite System) network
Jianhui Cui, Rui Yan, Chenlong Deng, Weiming Tang, Xuan Zou, Mingxing Shen, Qian Liu, Yawei Wang, Yangyang Li   +8 more
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Observable-specific phase biases of Wuhan multi-GNSS experiment analysis center’s rapid satellite products

Satellite Navigation, 2022
Precise Point Positioning (PPP) with Ambiguity Resolution (AR) is an important high-precision positioning technique that is gaining popularity in geodetic and geophysical applications. The implementation of PPP-AR requires precise products such as orbits,
Jianghui Geng, Qiyuan Zhang, Guangcai Li, Jingnan Liu, Donglie Liu   +4 more
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Evaluation of Network RTK Positioning Performance Based on BDS-3 New Signal System

Remote Sensing, 2021
The BeiDou navigation satellite system (BDS-3) has been deployed and provides positioning, navigation, and timing (PNT) services for users all over the world.
Pengxu Wang, Hui Liu, Zhixin Yang, Bao Shu, Xintong Xu, Guigen Nie   +5 more
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Tropospheric Second-Order Horizontal Gradient Modeling for GNSS PPP

Remote Sensing, 2022
The asymmetric delay has a considerable impact on Global Navigation Satellite Systems (GNSS) Positioning, Navigation and Timing (PNT) applications. In GNSS analyses, the impacts of the asymmetric delay are commonly compensated by using the classical ...
Yaozong Zhou, Yidong Lou, Weixing Zhang, Peida Wu, Jingna Bai, Zhenyi Zhang   +5 more
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Impacts of inter-satellite links on the ECOM model performance for BDS-3 MEO satellites

Satellite Navigation
Inter-satellite link (ISL) plays an essential role in current and future Global Navigation Satellite System (GNSS). In this study, we investigate the impact of ISL observations on precise orbit determination for BeiDou-3 Navigation Satellite System (BDS ...
Chao Yang, Jing Guo, Xiaolong Xu, Longyu Wang, Qile Zhao   +4 more
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Quantifying seasonal poroelastic response induced by groundwater changes in GPS vertical displacement: a case study of Central Valley, California, USA

Geo-spatial Information Science
California has suffered several severe drought-flood abrupt alternation (DFAA) events over the past ~20 years, affecting non-linear variations in GPS position time series.
Xin Ding, Zhao Li, Kaichun Yang, Ran Lu, Xingyu Zhou, Kai Liu, Xiaowei Zou, Tingye Tao   +7 more
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LRMO: A Lightweight and Redundant Multi-Modal Odometry Framework for Robust Intelligent Vehicle Localization [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Reliable and robust self-localization is the essential component of intelligent vehicles (IV). Many scholarly works have been focused on developing accurate multi-modal integrated pose estimation schemes.
X. Dai, L. Chen, Z. Tu, S. Zheng, S. Zhou, F. Lin, W. Song   +6 more
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Assessment of Multi-Frequency PPP Ambiguity Resolution Using Galileo and BeiDou-3 Signals

Remote Sensing, 2021
From network RTK to PPP-RTK, it is highly expected that high-precision positioning within a few minutes can be achieved with a sparse reference network.
Jiang Guo, Qiyuan Zhang, Guangcai Li, Kunlun Zhang   +3 more
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Real-Time Estimation of Low Earth Orbit (LEO) Satellite Clock Based on Ground Tracking Stations

Remote Sensing, 2020
The rapid movement of low Earth orbit (LEO) satellite can improve geometric diversity, which contributes to the rapid convergence of Global Navigation Satellite System (GNSS) precise point positioning (PPP). However, the LEO onboard receiver clock cannot
Zhixin Yang, Hui Liu, Chuang Qian, Bao Shu, Linjie Zhang, Xintong Xu, Yi Zhang, Yidong Lou   +7 more
doaj   +1 more source