Results 211 to 220 of about 14,714 (253)

SINS initial alignment for small tilt and large azimuth misalignment angles

2011 IEEE 3rd International Conference on Communication Software and Networks, 2011
This paper presents the static base alignment of Strapdown Inertial Navigation System (SINS) employing simplified unscented Kalman filter (UKF) on nonlinear error model. Simplified UKF for nonlinear process and linear measurement models with complex additive noise is addressed and the error model for static alignment is derived with small tilt and ...
Tasadduq Abbas, Zhang Yunyan, Li Yanjun
openaire   +1 more source

Deterministic Particle Filter based transfer alignment method for large misalignment angle

2009 International Conference on Mechatronics and Automation, 2009
Based on multivariate distribution F-deviation representative point of number theory, an improved Deterministic Particle Filter (DPF) algorithm is presented in this paper, in which unequal weight is used for particle generation, important particle sampling and particle re-sampling.
null Guoqiang Ding, null Weidong Zhou, null Yanling Hao, null Guangzhao Cui   +3 more
openaire   +1 more source

Zero-Phase-Angle Controlled Bidirectional Wireless EV Charging Systems for Large Coil Misalignments

IEEE Transactions on Power Electronics, 2020
Misalignment between charging coils is an unavoidable problem in all electric vehicle (EV) charging systems that are based on wireless power transfer (WPT) technology. This is because variations in both self- and mutual inductances of charging coils due to coil misalignments significantly affect the charging rate and efficiency of the EV charger.
Yeran Liu, Udaya Kumara Madawala, Ruikun Mai, Zhengyou He   +3 more
openaire   +1 more source

The Model and Simulation of Transfer Alignment of Carrier Based Aircraft INS with Large Azimuth Misalign Angle

2009 International Joint Conference on Computational Sciences and Optimization, 2009
In order to solve the initial alignment problem of carrier based aircraft with a large azimuth misalignment condition, the error model of transfer alignment is built. This model transfers large azimuth misalignment angle problem between carrier coordinates and aircraft real coordinates into small azimuth misalignment angle problem between aircraft ...
Qingwei Gao, Guorong Zhao, Xibin Wang
openaire   +1 more source

Study on SRUKF Applied in Initial Alignment with Large Misalignment Angle on Stationary Base of SINS

Advanced Materials Research, 2011
The initial alignment error model of SINS (Strap-down Inertial Navigation System) with large misalignment angle is nonlinear. The traditional EKF (Extended Kalman Filter) was used to linearization a nonlinear system, but its performance is limited. In this paper we use the SRUKF (Square Root Unscented Kalman Filter) to process this nonlinear system and
Kai Cheng, Chun Mei Huang, Yue Yuan Zhao
openaire   +1 more source

Research on hull deformation measurement for large azimuth misalignment angle based on attitude quaternion

Optik, 2019
Abstract Hull deformation is the fundamental reason that restricts the establishment of a unified attitude reference for large ships, it can be effectively measured by inertia matching method with two inertia measurement sensors. However, due to the limitation of installation location, the azimuth misalignment angle between two inertial measurement ...
Ying He, Xiaoli Zhang, Xiafu Peng, Xiaoqiang Hu, Dongsheng Xu   +4 more
openaire   +1 more source

Ensemble Particle Filter Based on KLD and Its Application to Initial Alignment of the SINS in Large Misalignment Angles

IEEE Transactions on Industrial Electronics, 2018
Among many auxiliary particle filtering algorithms, the ensemble particle filter (EnPF) has been widely applied in various fields, which can be ascribed to its avoidance of the heavy computational burden resulted by the parallel computation of multifilters.
Haijun Shao, Lingjuan Miao, Weixi Gao, Jun Shen   +3 more
openaire   +1 more source

Fuzzy adaptive strong tracking scaled unscented Kalman filter for initial alignment of large misalignment angles

Review of Scientific Instruments, 2016
In the initial alignment process of strapdown inertial navigation system (SINS), large misalignment angles always bring nonlinear problem, which can usually be processed using the scaled unscented Kalman filter (SUKF). In this paper, the problem of large misalignment angles in SINS alignment is further investigated, and the strong tracking scaled ...
Jing, Li, Ningfang, Song, Gongliu, Yang, Rui, Jiang   +3 more
openaire   +2 more sources

A Large Misalignment Angles Initial Alignment Method of SINS based on Feedback Correction and the Fading Multi-innovation Tracking

2020 3rd International Conference on Electron Device and Mechanical Engineering (ICEDME), 2020
In order to shorten the initial alignment time of SINS and improve the system's fast response ability, a large misalignment angle initial alignment method is proposed by feedback correction Kalman filter of the fading multi-innovation strong orthogonal tracking.
Meng Wu, Xun-feng Yin
openaire   +1 more source

Study on Iterated Divided Difference Filtering and Its Application on TA Process with Large Initial Misalignment Angle

2010 Third International Conference on Information and Computing, 2010
With provision for minishing the influence of higher-order truncation error in DDFII algorithm on the state estimation problem of transfer alignment (TA) with large misalignment angles, it developed the Iterated DDFII (IDDFII) algorithm. This algorithm applied the estimation value of state vector to linearize the nonlinear system function more times ...
Guoqiang Ding, Jiguang Li, Weidong Zhou, Guangzhao Cui   +3 more
openaire   +1 more source