Results 241 to 250 of about 19,382,518 (277)

Research on Integrated Technologies for Space Target Imaging, Ranging, and Communication. [PDF]

J Imaging
Gu X, Fu Q, Liu Z, Wang G, Wang H, Wang C, Wang T, Li Y, Jiang H.   +8 more
europepmc   +1 more source

Predictive modelling and experimental analysis of radiation-resistant MXene-silicon heterojunction solar cells. [PDF]

Discov Nano
Jayan K D, H I E, Prasad S K, Syum GG.
europepmc   +1 more source

Orbital Metastases of Breast Cancer: Case Report and Review of the Literature. [PDF]

Oncol Res
Zhu T, Zang S, Chen B.
europepmc   +1 more source

Geodetic Investigations of the Europa Clipper Mission. [PDF]

Space Sci Rev
Steinbrügge G, Park RS, Roberts JH, Bland M, Brooks S, Castillo-Rogez J, Cascioli G, Genova A, Greathouse T, Hussmann H, Kirk R, Magnanini A, Mazarico E, Nimmo F, Park MS, Petricca F, Retherford K, Schroeder DM, Soderlund KM, Tortora P, Zannoni M.   +20 more
europepmc   +1 more source

QTOF and Orbitrap Technologies in Modern Pesticide Analysis: Applications in Residue Detection and Degradation Pathway Elucidation. [PDF]

J Anal Methods Chem
Li R, Min L, Gao K, Zhong L, Meng X, Cheng Y.   +5 more
europepmc   +1 more source

Comparison of the real-time precise orbit determination for LEO between kinematic and reduced-dynamic modes

Measurement: Journal of the International Measurement Confederation, 2022
Abstract The real-time high-accuracy orbit and clock of the GNSS (Global Navigation Satellite System) are one of the most essential corrections for the real-time kinematic precise orbit determination (POD) mode and reduced-dynamic POD mode for Low Earth Orbit (LEO) satellites.
Mohammed Mainul Hoque, Ang Liu, Hong Yuan   +2 more
exaly   +5 more sources

Precise Onboard Orbit Determination for LEO Satellites with Real-Time Orbit and Clock Corrections

ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2016
Precise Point Positing (PPP) with real-time orbit and clock correction streams has become an established technique over the last decade for land, air and sea applications. The use of real-time corrections for precise positioning has not extended into orbit yet, although a number of low-Earth orbit (LEO) satellite missions have a demand for precise ...
Hauschild, Andre, Tegedor, Javier, Montenbruck, Oliver, Visser, Hans, Markgraf, Markus   +4 more
openaire   +2 more sources

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PPP augmentation and real-time precise orbit determination for LEO satellites

2017 36th Chinese Control Conference (CCC), 2017
It is valuable for ground users to realize centimeter-level positioning based on PPP. However, the initialization of PPP algorithm costs a long time, which limits its application. In order to achieve the near-real-time PPP positioning for users, an augmentation scheme by utilizing LEO satellite is proposed so as to improve the initialization speed of ...
Yi Zhao, Feng Yu, Na Xu
exaly   +2 more sources

Improving multi-GNSS ultra-rapid orbit determination for real-time precise point positioning

Journal of Geodesy, 2018
Currently, with the rapid development of multi-constellation Global Navigation Satellite Systems (GNSS), the real-time positioning and navigation are undergoing dramatic changes with potential for a better performance. To provide more precise and reliable ultra-rapid orbits is critical for multi-GNSS real-time positioning, especially for the three ...
Harald Schuh, Maorong Ge, Xingxing Li
exaly   +4 more sources

Real-time precise orbit determination for BDS satellites using the square root information filter

GPS Solutions, 2019
Though widely used to generate the global navigation satellite system (GNSS) ultra-rapid orbit products for real-time applications, the batch least-squares (LSQ) adjustment and precise orbit determination (POD) prediction is limited for satellites undergoing maneuvers.
Yidong Lou, Xiaolei Dai, Chuang Shi
exaly   +2 more sources