Results 181 to 190 of about 31,323 (238)

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

Modified strapdown inertial navigator error models

Proceedings of 1994 IEEE Position, Location and Navigation Symposium - PLANS'94, 2002
The paper revisits the problem of error modeling for strapdown INS for the purpose of navigation sensor blending with a Kalman filter. This problem has been addressed repeatedly over the last 30 years, and different perspectives on INS error modeling have emerged.
B.M. Scherzinger, D.B. Reid
openaire   +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

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

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

Strapdown Inertial Navigation Mechanism

Pedestrian Inertial Navigation with Self‐Contained Aiding, 2021
Strapdown inertial navigation systems are the most common form of inertial navigation system due to its potential benefits of lower cost, reduced size, and greater reliability compared with equivalent gimbal systems.
A. Shkel, Yusheng Wang
semanticscholar   +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 algorithm in geometric algebra

2011 International Conference on Electrical and Control Engineering, 2011
Geometric algebra(GA) is a very convenient representational and computational system for geometry due to its clear geometrical meanings and simple notations. The rigid body motion is represented by motors in GA. We derive the kinematic equation of motors, and associate motors with specific force acceleration and angular rate which can be measured in ...
Dimin Wu, Zhengzhi Wang
openaire   +1 more source

Navigation Error Analysis in Strapdown Inertial Navigation

Pedestrian Inertial Navigation with Self‐Contained Aiding, 2021
One of the most important characteristics of an inertial navigation system is its navigation accuracy, which is directly related to the measurement errors of the inertial measurement unit (IMU).
A. Shkel, Yusheng Wang
semanticscholar   +1 more source