Results 61 to 70 of about 858 (174)

Data‐driven observability analysis and enhancement for radome slope estimation with constraints on impact angle and terminal acceleration

IET Radar, Sonar &Navigation, Volume 18, Issue 10, Page 1887-1907, October 2024.
The authors propose a data‐driven observability analysis method for radome aberration estimation systems with LOS‐angle‐only measurements, and an observability‐enhanced guidance law that considers both impact angle and terminal acceleration constraints.
Bingyu Jin, Kelin Lu, Yuping Lu
wiley   +1 more source

SHAKF‐PU: Sage–Husa Adaptive Kalman Filtering‐Based Pedestrian Characteristic Parameter Update Mechanism for Enhancing Step Length Estimation in Pedestrian Dead Reckoning

Applied Bionics and Biomechanics, Volume 2024, Issue 1, 2024.
Step length estimation (SLE) is the core process for pedestrian dead reckoning (PDR) for indoor positioning. Original SLE requires accurate estimations of pedestrian characteristic parameter (PCP) by the linear update, which may cause large distance errors.
Chinyang Henry Tseng, Jiunn-Yih Wu, Francesca Cordella   +2 more
wiley   +1 more source

Improved Pedestrian Location Method for the Indoor Environment Based on MIMU and sEMG Sensors

Journal of Sensors, Volume 2024, Issue 1, 2024.
In order to guarantee the pedestrian location accuracy for the indoor environment, an improved pedestrian location method based on the improved Mahony complementary filter algorithm is proposed by the data fusion of microinertial measurement unit (MIMU) and sEMG sensors, which are installed on the lower limbs.
Xu Ling, Xu Yun, Wang Funeng, Everardo Vargas-Rodriguez   +3 more
wiley   +1 more source

Optimization-based alignment for strapdown inertial navigation system: comparison and extension [PDF]

IEEE Transactions on Aerospace and Electronic Systems, 2016
In this paper, the optimization-based alignment (OBA) methods are investigated with main focus on the vector observations construction procedures for the strapdown inertial navigation system (SINS). The contributions of this study are twofold. First the OBA method is extended to be able to estimate the gyroscopes biases coupled with the attitude based ...
Lubin Chang, Jingshu Li, Kailong Li
openaire   +2 more sources

Initial Alignment Algorithm Based on the DMCS Method in Single-Axis RSINS with Large Azimuth Misalignment Angles for Submarines

Sensors, 2018
Since the inertial sensor error has been modulated effectively by the Rotation Modulation Technique (RMT), the Rotation Strapdown Inertial Navigation System (RSINS) has been widely used for submarines in order to satisfy the requirement of high-accuracy ...
Xiu-Wei Xia, Qian Sun
doaj   +1 more source

A Novel Step Length Estimator Based on Foot-Mounted MEMS Sensors

Sensors, 2018
Pedestrian Dead Reckoning (PDR)-based pedestrian navigation technology is an important part of indoor and outdoor seamless positioning services. To improve the performance of PDR, we have conducted research on a step length estimator.
Zhuangsheng Zhu, Shibo Wang
doaj   +1 more source

Strapdown inertial navigation curve measurement system of full-section roadheader in coal mine

Gong-kuang zidonghua, 2019
In view of problems of bad visibility and difficulty in real-time measurement existed in deviation curve measurement system of coal mine tunneling roadway, a strapdown inertial navigation curve measurement system of full-section roadheader in coal mine ...
LIU Yu, CHEN Genlin, LIU Yongzhong
doaj   +1 more source

Mathematical Model and Matlab Simulation of Strapdown Inertial Navigation System

Modelling and Simulation in Engineering, 2012
Basic principles of the strapdown inertial navigation system (SINS) using the outputs of strapdown gyros and accelerometers are explained, and the main equations are described. A mathematical model of SINS is established, and its Matlab implementation is
Wen Zhang, Mounir Ghogho, Baolun Yuan
doaj   +1 more source

Research on a mixed prediction method to vehicle integrated navigation systems

International Journal of Advanced Robotic Systems, 2019
Aiming to improve the positioning accuracy of vehicle integrated navigation system (strapdown inertial navigation system/Global Positioning System) when Global Positioning System signal is blocked, a mixed prediction method combined with radial basis ...
Di Zhao, Huaming Qian, Dingjie Xu
doaj   +1 more source

Comparison of numerical integration methods in strapdown inertial navigation algorithm

Research in Agricultural Engineering, 2011
The numerical mathematical theory provides a few ways of numerical integration with different errors. It is necessary to make use of the most exact method with respect to the computing power for a majority of microprocessors, because errors are ...
V. Cviklovič, D. Hrubý, M. Olejár, O. Lukáč   +3 more
doaj   +1 more source