Results 21 to 30 of about 19,382,518 (277)
Centimeter-Level Orbit Determination of GRACE-C Using IGS-RTS Data
Remote Sensing, 2023 GNSS real-time applications greatly benefit from the International GNSS Service’s (IGS) real-time service (RTS). This service does more than provide for terrestrial precise point positioning (PPP); it also brings more possibilities for space-borne ...
Duoduo Li, Xuhua Zhou, Kai Li
doaj +1 more source
Remote Sensing, 2022 The augmentation of the Global Navigation Satellite System (GNSS) by Low Earth Orbit (LEO) satellites is proposed as an effective method to improve the precision and shorten the convergence time of Precise Point Positioning (PPP).
Kan Wang +4 more
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Relative Navigation to Non-Cooperative Targets in LEO: Achievable Accuracy from Radar Tracking Measurements [PDF]
, 2013 Any future space debris removal or on-orbit servicing mission faces the problem of the initial relative orbit determination of the servicing satellite to the non-cooperative target.
Letsch, Klemens +5 more
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Geostationary Orbit Surveillance Using the Unscented Kalman Filter and the Analytical Orbit Model [PDF]
Journal of Astronomy and Space Sciences, 2011 A strategy for geostationary orbit (or geostationary earth orbit [GEO]) surveillance based on optical angular observations is presented in this study. For the dynamic model, precise analytical orbit model developed by Lee et al.
Kyoung-Min Roh +2 more
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Remote Sensing, 2019 This paper describes the sensitivity of both the orbital frame domain selection and the gravity model on the performance of on-board real-time orbit determination.
Eunhyouek Kim +2 more
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Assessment of numerical differentiation methods for kinematic orbit solution of the GRACE mission [PDF]
, 2013 textThe historical method of precise orbit determination is a dynamic approach. However, with the improvement of GPS tracking data and associated tracking networks, two newer methods have been developed: reduced-dynamic and kinematic.
Krishnan, Sandeep Kalyanapuram
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Remote Sensing, 2021 Currently, low Earth orbit (LEO) satellites are attracting great attention in the navigation enhancement field because of their stronger navigation signal and faster elevation variation than medium Earth orbit (MEO) satellites.
Junjun Yuan +6 more
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Orbit Propagation and Determination of Low Earth Orbit Satellites
International Journal of Antennas and Propagation, 2014 This paper represents orbit propagation and determination of low Earth orbit (LEO) satellites. Satellite global positioning system (GPS) configured receiver provides position and velocity measures by navigating filter to get the coordinates of the orbit ...
Ho-Nien Shou
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Precise Onboard Real-Time Orbit Determination with a Low-Cost Single-Frequency GPS/BDS Receiver
Remote Sensing, 2019 The low-cost single-frequency GNSS receiver is one of the most economical and affordable tools for the onboard real-time navigation of numerous remote sensing small/micro satellites.
Xuewen Gong +6 more
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Precise orbit determination based on COST-G time-variable gravity fields [PDF]
, 2022 The Combination Service for Time-variable Gravity fields (COST-G) provides monthly gravity fields, combined from the individual solutions of the COST-G analysis centers and additional partner analysis centers derived from GRACE/GRACE-FO inter-satellite ...
Lasser, Martin +4 more
core +1 more source