Results 1 to 10 of about 4,802 (208)

Compensation of Horizontal Gravity Disturbances for High Precision Inertial Navigation [PDF]

Sensors, 2018
Horizontal gravity disturbances are an important factor that affects the accuracy of inertial navigation systems in long-duration ship navigation.
Junbo Tie, Juliang Cao, Meiping Wu, Junxiang Lian, Shaokun Cai, Lin Wang   +5 more
doaj   +5 more sources

Gravity disturbance compensation for dual-axis rotary modulation inertial navigation system

Frontiers in Marine Science, 2023
Gravity disturbance compensation is an important technique for improving the positioning accuracy of high-precision inertial navigation systems (INS).
Panpan Zhang, Panpan Zhang, Lin Wu, Lifeng Bao, Bo Wang, Hui Liu, Qianqian Li, Yong Wang   +7 more
doaj   +3 more sources

Analysis of Gravity Disturbance Compensation for Initial Alignment of INS

IEEE Access, 2020
To address the accuracy requirements of initial alignment of high-precision inertial navigation systems (INSs), gravity disturbance compensation for INSs based on a spherical harmonic model is investigated herein.
Shiwen Hao, Zhaofa Zhou, Zhili Zhang, Zhenjun Chang, Xianyi Liu   +4 more
doaj   +3 more sources

A Model of Gravity Vector Measurement Noise for Estimating Accelerometer Bias in Gravity Disturbance Compensation

Sensors, 2018
Compensation of gravity disturbance can improve the precision of inertial navigation, but the effect of compensation will decrease due to the accelerometer bias, and estimation of the accelerometer bias is a crucial issue in gravity disturbance ...
Junbo Tie, Juliang Cao, Lubing Chang, Shaokun Cai, Meiping Wu, Junxiang Lian   +5 more
doaj   +3 more sources

Integrated Dynamic Modeling and Ground Test Validation for Spacecraft Micro-Vibration Suppression Considering Disturbance, Isolation, and Pointing Control [PDF]

Sensors
On-orbit micro-vibration has emerged as a critical constraint impairing the imaging performance and ultra-high pointing accuracy of space optical payloads.
Hua Wang, Han Yan, Lei Tian, Xu Zang, Yingqing Zu   +4 more
doaj   +2 more sources

Horizontal gravity disturbance vector in atmospheric dynamics

Dynamics of Atmospheres and Oceans, 2023
Peter C Chu
exaly   +2 more sources

Comments on “horizontal gravity disturbance vector in atmospheric dynamics” by Peter C. Chu

Dynamics of Atmospheres and Oceans, 2023
Edmund K M Chang, Christopher L P Wolfe, Andrew L Stewart   +2 more
exaly   +2 more sources

Global Ionospheric Disturbance Propagation and Vertical Ionospheric Oscillation Triggered by the 2022 Tonga Volcanic Eruption

Atmosphere, 2022
The Tonga volcano erupted on 15 January 2022, at 04:15:45 UTC, which significantly influenced the atmosphere and space environment, at the same time, an unprecedented opportunity to monitor ionospheric anomalies is provided by its powerful eruption.
Qiaoli Kong, Changsong Li, Kunpeng Shi, Jinyun Guo, Jingwei Han, Tianfa Wang, Qi Bai, Yanfei Chen   +7 more
doaj   +1 more source

Invalid spheroidal geopotential approximation and non-decomposable centrifugal acceleration from gravity – Reply to: Comments on “Horizontal gravity disturbance vector in atmospheric dynamics” by Chang, Wolfe, Stewart, McWilliams

Dynamics of Atmospheres and Oceans
Peter C Chu
exaly   +2 more sources

Formation of Australasian tektites from gravity and magnetic indicators

Scientific Reports, 2023
The parent impact crater of Australasian tektites has not been discovered so far, but a consensus has been accepted on its location in a wider area of Indochina.
Kurosh Karimi, Gunther Kletetschka, Jiří Mizera, Verena Meier, Vladimír Strunga   +4 more
doaj   +1 more source