Results 201 to 210 of about 31,323 (238)

System reset for underwater strapdown inertial navigation system

Ocean Engineering, 2019
Abstract Conventional system reset methods establish the relationship between measurements such as position or heading and gyro drifts by the Psi equation, following which, they iteratively calculate the gyro drifts. However, these methods have some limitations in practice.
Yueyang Ben, Xinle Zang, Qian Li, Xingyu Liu, Hainan Chen   +4 more
openaire   +1 more source

Improved exponential weighted moving average based measurement noise estimation for strapdown inertial navigation system/doppler velocity log integrated system

Journal of navigation, 2020
The strapdown inertial navigation system (SINS) with integrated Doppler velocity log (DVL) is widely utilised in underwater navigation. In the complex underwater environment, however, the DVL information may be corrupted, and as a result the accuracy of ...
Lanhua Hou, Xiaosu Xu, Yiqing Yao, Di Wang, Jinwu Tong   +4 more
semanticscholar   +1 more source

Strapdown inertial navigation system of pendulum type

Mechanics of Solids, 2014
We consider two implementations of an isotropic oscillator to be used in the construction of a strapdown inertial system of new type [1]. The first implementation is a contact-free suspension of an electrically conductive ball used in electrostatic gyros, and the second implementation is a 3D combination of elastic constraints holding a mass point.
openaire   +1 more source

A robust in-motion attitude alignment method for odometer-aided strapdown inertial navigation system.

Review of Scientific Instruments, 2020
A significant issue of land vehicle navigation is in-motion attitude alignment of the odometer (OD)-aided strapdown inertial navigation system (SINS).
Yiding Sun, Gongliu Yang, Qingzhong Cai, Zeyang Wen   +3 more
semanticscholar   +1 more source

Gyrocompassing mode of the strapdown inertial navigation system

2017 IEEE 2nd Information Technology, Networking, Electronic and Automation Control Conference (ITNEC), 2017
A gyrocompassing mode of the strapdown inertial navigation systems (SINS) was presented. SINS has been composed of Inertial Measurement Unit (IMU) and navigation computer. IMU consists of triad accelerometers, gyroscopes and a circuit of signal processing.
Xing Xiangming, V.V. Avrutov, V.V. Meleshko   +2 more
openaire   +1 more source

Application of gravity passive aided strapdown inertial navigation in underwater vehicles

Int. J. Sens. Networks, 2020
Underwater navigation technology is the guarantee to ensure the underwater vehicles complete all tasks. A gravity passive aided strapdown inertial navigation system is proposed in order to improve the precision of position of autonomous underwater ...
Qi Wang, Chang-song Yang, Shaoen Wu, Yan Wang   +3 more
semanticscholar   +1 more source

Strapdown Inertial Navigation System Initial Alignment Based on Modified Process Model

IEEE Sensors Journal, 2019
In this paper, the nonlinear initial alignment method for Strapdown inertial navigation system is investigated. As an important part of the nonlinear initial alignment method, the dynamic model based on nonlinear error equations is re-derived with the ...
Lubin Chang, F. Qin, Sai Jiang
semanticscholar   +1 more source

Basic principles of strapdown inertial navigation systems

2004
The previous chapter has provided some insight into the basic measurements that are necessary for inertial navigation. For the purposes of the ensuing discussion, it is assumed that measurements of specific force and angular rate are available along and about axes which are mutually perpendicular.
openaire   +1 more source

Aided strapdown inertial navigation for autonomous underwater vehicles

SPIE Proceedings, 2010
This paper presents a navigation algorithm based on aided strapdown inertial navigation (INS) for an underwater autonomous underwater vehicle (AUV). The AUV is equipped with a long baseline (LBL) acoustic positioning system, acoustic Doppler current profiler (ADCP) and a depth sensor to aid the INS.
Yu Liu, X. Rong Li
openaire   +1 more source

Cascade Compensation Algorithm for Strapdown Inertial Navigation System

Advanced Materials Research, 2011
The cascade compensation algorithm for no damp strapdown inertial navigation system (SINS) is designed based on control model and error characteristic of SINS level-loop. According to stability and frequency characteristic analysis for SINS level-loop, a compensation network, which is chosen to alter either the roots location or the frequency response ...
Feng Zha, Jiang Ning Xu, Bai Qing Hu
openaire   +1 more source