Results 181 to 190 of about 28,117 (261)

A Dual-State Filter for a Relative Velocity Aiding Strapdown Inertial Navigation System

IEEE Transactions on Instrumentation and Measurement, 2021
The strapdown inertial navigation system that uses the aiding velocities from a relative log is usually affected by the ocean current. Therefore, a dual-state filter algorithm to alleviate the effect from unknown ocean current is proposed in this article.
Yueyang Ben, Xinle Zang, Qian Li, J. He
semanticscholar   +1 more source

Strapdown inertial navigation system calibration

2017 2nd International Ural Conference on Measurements (UralCon), 2017
The paper aims at improving the accuracy of the calibration of strapdown inertial navigation systems (SINS). The calibration is carried out using a 2-axial motion simulator. A new computational method is investigated for the calibration coefficients of the error models of accelerometers and gyroscopes of the strapdown inertial navigation system based ...
S. G. Nikolaev, A. V. Golota
openaire   +1 more source

A fast robust Kalman filter for initial alignment of strapdown inertial navigation system

Optik (Stuttgart), 2021
This paper investigates the non-Gaussian initial alignment for the strapdown inertial navigation system (SINS) with main focus on reducing the computational burden, meanwhile, ensuring the robustness of alignment filter.
Xuyou Li, Qingwen Meng, Meng Liu, Yanda Guo   +3 more
semanticscholar   +1 more source

In-motion initial alignment method for a laser Doppler velocimeter-aided strapdown inertial navigation system based on an adaptive unscented quaternion H-infinite filter

Measurement science and technology, 2021
With its advantages of high velocity measurement accuracy and fast dynamic response, the laser Doppler velocimeter (LDVs) is expected to replace the odometer (OD) in combination with a strapdown inertial navigation system (SINS) to give a higher ...
Zhiyi Xiang, Qi Wang, Rong Huang, Chongbin Xi, Xiaoming Nie, Jian Zhou   +5 more
semanticscholar   +1 more source

Coarse alignment of marine strapdown inertial navigation system using the location of fitted parametric circle of gravity movement

Journal of navigation, 2021
This paper presents a novel estimation method for coarse alignment of a marine strapdown inertial navigation system (SINS) under mooring conditions. The properties of gravitational motion are used to improve the accuracy of coarse alignment.
Hossein Rahimi, A. Nikkhah
semanticscholar   +1 more source

Multiposition alignment of strapdown inertial navigation system

IEEE Transactions on Aerospace and Electronic Systems, 1993
The authors demonstrate that the stationary alignment of strapdown inertial navigation system (SDINS) can be improved by employing the multiposition/technique. Using an observability analysis, it is shown that an optimal two-position alignment not only satisfies complete observability conditions but also minimizes alignment errors.
J.G. Lee, C.G. Park, H.W. Park
openaire   +1 more source

Fiber-based rotary strapdown inertial navigation system

Optical Engineering, 2013
Navigation involves the integration of methodologies and systems for estimating the time-varying attitude of moving objects. A fiber strapdown inertial navigation system (FSINS) is presently used in several applications related to vehicle navigation. However, the absolute attitude and position from FSINS contain an error that increases with time.
Wei Sun, Yang Gao
openaire   +1 more source

MEMS-based rotary strapdown inertial navigation system

Measurement, 2013
Abstract As the inertial navigation completely depends on the sensed acceleration and rotation rate by IMU, the sensor errors accumulate and eventually lead to diverged inertial solutions. Therefore the compensation of the inertial sensor errors is an effective approach to improve the SINS navigation performance.
Wei Sun, Daxue Wang, Longwei Xu, Lingling Xu   +3 more
openaire   +1 more source

Strapdown Inertial Navigation System Algorithms Based on Geometric Algebra

Advances in Applied Clifford Algebras, 2012
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wu, Dimin, Wang, Zhengzhi
openaire   +2 more sources

Doppler-Aided Low-Accuracy Strapdown Inertial Navigation System

Journal of Guidance, Control, and Dynamics, 1982
This paper presents a covariance analysis of the performance of a Doppler-aided low-accuracy coarsely aligned strapdown inertial navigation system (INS), whose fine alignment takes place automatically in flight. It is shown that the fine alignment in azimuth, which requires turns, consists of in-flight gyro calibration and inflight gyrocompassing.
Itzhack Y. Bar-Itzhack, Daniel Serfaty, Yehoshua Vitek   +2 more
openaire   +1 more source