Results 11 to 20 of about 147,661 (240)

Initial alignment of compass based on genetic algorithm-particle swarm optimization

Defence Technology, 2020
Abstract The rapidity and accuracy of the initial alignment influence the performance of the strapdown inertial navigation system (SINS), compass alignment is one of the most important methods for initial alignment. The selection of the parameters of the compass alignment loop directly affects the result of alignment.
Pengfei Jiang, Wen An
exaly   +2 more sources

Strong tracking dimensionality-reduction CKF algorithm for SINS initial alignment under large misalignment angle [PDF]

Scientific Reports
Initial alignment is the prerequisite and foundation for the normal operation of the Strapdown Inertial Navigation System (SINS). Kalman filtering and various evolution algorithms are commonly employed tools for achieving initial alignment.
Yong Yang, Donglin Li, Yujie Fu, Kaijun Xu   +3 more
doaj   +2 more sources

Application of Nonlinear H∞ Filtering Algorithm for Initial Alignment of the Missile-borne SINS

AASRI Procedia, 2014
Abstract The H∞ filtering and Unscented Transformation(UT) algorithm are introduced to deal with the initial alignment error of missile-borne Strapdown Inertial Navigation System(SINS), which is caused by the nonlinear error model and the uncertainty of the disturbance noise.
Wu, Zhiqiang, Wang, Yu, Zhu, Xinhua
exaly   +2 more sources

Improved initial alignment algorithm of SINS on shaking base based on Kalman filter

Wireless Personal Communications, 2022
Abstract In the initial alignment of shaking base, Kalman filter is easy to diverge, and the alignment result is poor. Many scholars introduce various nonlinear filtering methods to solve this problem, but these filtering methods not only have large amount of calculation, but also are low accuracy.
Ling-Feng Shi, Zhi-Yong Hou, Yun-Feng Lv
openaire   +2 more sources

GADP-align: A genetic algorithm and dynamic programming-based method for structural alignment of proteins [PDF]

BioImpacts, 2021
Introduction: Similarity analysis of protein structure is considered as a fundamental step to give insight into the relationships between proteins. The primary step in structural alignment is looking for the optimal correspondence between residues of two
Soraya Mirzaei, Jafar Razmara, Shahriar Lotfi   +2 more
doaj   +1 more source

Algorithm of the autonomous initial alignment of sins with sequential filtering

MECHANICS OF GYROSCOPIC SYSTEMS, 2022
Запропоновано та розглядається алгоритм автономної початкової виставки безплатформної інерціальної навігаційної системи  на нерухомій або обмежено рухомій основі. У ньому послідовно використовуються два осереднюючi фільтри Калмана. Перший за сигналами акселерометрів визначає один стовпець матриці направляючих косинусів між осями повʼязаного із ...
openaire   +4 more sources

A Vision Aided Initial Alignment Method of Strapdown Inertial Navigation Systems in Polar Regions

Sensors, 2022
The failure of the traditional initial alignment algorithm for the strapdown inertial navigation system (SINS) in high latitude is a significant challenge due to the rapid convergence of polar longitude.
Fubin Zhang, Xiaohua Gao, Wenbo Song
doaj   +1 more source

AN INITIAL ALIGNMENT METHOD OF INERTIAL NAVIGATION SYSTEM FOR THE STATIC STATE [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022
The navigation means the process of determining the position, velocity, and orientation of the moving object such as the land vehicle, aerial vehicle, and even autonomous vehicle.
H.-Y. Liu, S. Tsai, M.-L. Tsai, K.-W. Chiang   +3 more
doaj   +1 more source

An Improved Inertial Frame Alignment Algorithm Based on Horizontal Alignment Information for Marine SINS

Sensors, 2015
In this paper, an improved inertial frame alignment algorithm for a marine SINS under mooring conditions is proposed, which significantly improves accuracy.
Yanting Che, Qiuying Wang, Wei Gao, Fei Yu   +3 more
doaj   +1 more source

Fine Alignment Algorithm for UUVs With a Large Misalignment Angle

IEEE Access, 2019
In order to overcome the problem that the conventional algorithms cannot be applied in the polar region, a polar initial alignment algorithm for Unmanned Underwater Vehicles (UUVs) with a large misalignment angle is proposed in this paper.
Zheping Yan, Anzuo Jiang, Xiangling Liu, Zewen Yang, Heng Li   +4 more
doaj   +1 more source