Results 181 to 190 of about 2,383 (200)
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GPS Solutions, 2020
Zero velocity update technology (ZUPT) has frequently been used as a tool to reduce divergence when the inertial navigation system (INS) is working in pure inertial mode. In general, the normal gravity model is adopted to calculate the gravity vector, and the effect of gravity disturbance is neglected.
Jun Weng, Jianning Liu, Ke Kou
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Zero velocity update technology (ZUPT) has frequently been used as a tool to reduce divergence when the inertial navigation system (INS) is working in pure inertial mode. In general, the normal gravity model is adopted to calculate the gravity vector, and the effect of gravity disturbance is neglected.
Jun Weng, Jianning Liu, Ke Kou
exaly +2 more sources
Mechanism and Machine Theory, 2021
Abstract In this paper, a fast terminal sliding mode controller is designed for an active suspension gravity compensation system with unknown bounds of uncertainties and disturbances. A robust finite-time convergence estimator is used to estimate the velocity and the disturbances.
Jiao Jia
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Abstract In this paper, a fast terminal sliding mode controller is designed for an active suspension gravity compensation system with unknown bounds of uncertainties and disturbances. A robust finite-time convergence estimator is used to estimate the velocity and the disturbances.
Jiao Jia
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Acta Astronautica, 2012
Abstract The Inner Formation Flying System (IFFS) consisting of an outer satellite and an inner satellite which is a solid sphere proof mass freely flying in the shield cavity can construct a pure gravity orbit to precisely measure the earth gravity field. The gravitational attraction on the inner satellite due to the outer satellite is a significant
Zhaokui Wang, Yulin Zhang
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Abstract The Inner Formation Flying System (IFFS) consisting of an outer satellite and an inner satellite which is a solid sphere proof mass freely flying in the shield cavity can construct a pure gravity orbit to precisely measure the earth gravity field. The gravitational attraction on the inner satellite due to the outer satellite is a significant
Zhaokui Wang, Yulin Zhang
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The Influence of Gravity Disturbance on High-Precision Long-Time INS and Its Compensation Method
2014 Fourth International Conference on Instrumentation and Measurement, Computer, Communication and Control, 2014The influence of gravity disturbance vector can't be neglected in high-precision long-time inertial navigation system (INS). In this paper, proceeding from INS arrange equations, we establish an error model of INS with gravity disturbance vector, and discuss on the basis of a case study of single channel how gravity disturbance vector influences INS in
Xiao Xuan
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2016 35th Chinese Control Conference (CCC), 2016
In Inner-Formation gravity field measurement satellite System (IFS), the inner satellite travels in a pure gravitational orbit within the cavity of outer satellite. Compelled by spatial non-gravitational forces and internal interferences, the outer satellite generates relative position and attitude drifts.
Li Ji, Junhua Xiang, Weiqi Qian
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In Inner-Formation gravity field measurement satellite System (IFS), the inner satellite travels in a pure gravitational orbit within the cavity of outer satellite. Compelled by spatial non-gravitational forces and internal interferences, the outer satellite generates relative position and attitude drifts.
Li Ji, Junhua Xiang, Weiqi Qian
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Measurement Science and Technology
Abstract With the increasing demands for long-endurance and high-accuracy inertial navigation system (INS), gravity disturbance has been identified as one of the major error sources with decisive effects on the performance of INS. To address the problem, this paper proposes an autonomous and high-accuracy gravity disturbance compensation
Jie Yang +3 more
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Abstract With the increasing demands for long-endurance and high-accuracy inertial navigation system (INS), gravity disturbance has been identified as one of the major error sources with decisive effects on the performance of INS. To address the problem, this paper proposes an autonomous and high-accuracy gravity disturbance compensation
Jie Yang +3 more
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2021 IEEE International Conference on Unmanned Systems (ICUS), 2021
Maosong Wang, Wenqi Wu, Xueyu Du
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Maosong Wang, Wenqi Wu, Xueyu Du
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A Novel Gravity Disturbance Compensation Inertial Navigation Method Based on Newtonian Mechanics
IEEE Transactions on Instrumentation and MeasurementKaixin Luo, Ruihang Yu, Juliang Cao
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A Low-Order Gravity Disturbance Compensation Algorithm Based on Carrier Motion Constraints
IEEE Sensors JournalWenzhe Zhang +2 more
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On-line compensation of disturbing gravity for ballistic missiles in the launching area
2020 39th Chinese Control Conference (CCC), 2020With the improvement of hardware level of the inertial navigation system, the disturbing gravity of the earth gradually becomes one of the main factors affecting the accuracy of missiles. In this paper, the effect mechanism of the disturbing gravity as well as its error propagation mechanism along the trajectory are analyzed in the first place, and ...
Lei Wang +3 more
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