Results 71 to 80 of about 31,323 (238)

Integrated Inertial/gps [PDF]

open access: yes, 1990
The presence of failures in navigation sensors can cause the determination of an erroneous aircraft state estimate, which includes position, attitude, and their derivatives.
Kline, Paul, Vangraas, Frank
core   +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

open access: yesApplied 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   +2 more
wiley   +1 more source

A Robust Self-Alignment Method for Ship’s Strapdown INS Under Mooring Conditions

open access: yesSensors, 2013
Strapdown inertial navigation systems (INS) need an alignment process to determine the initial attitude matrix between the body frame and the navigation frame. The conventional alignment process is to compute the initial attitude matrix using the gravity
Tong Cao   +6 more
doaj   +1 more source

Positioning Accuracy of the Shearer Based on a Strapdown Inertial Navigation System in Underground Coal Mining

open access: yesApplied Sciences, 2020
Automation and intelligent coal mining comprise the most important fields in coal mining technology research. The key to automation and intelligent coal mining is the automated mining of the working face, and accurate positioning of the shearer is one of
Gang Wu   +5 more
semanticscholar   +1 more source

DEEP LEARNING BASED SPEED ESTIMATION FOR CONSTRAINING STRAPDOWN INERTIAL NAVIGATION ON SMARTPHONES [PDF]

open access: yesInternational Workshop on Machine Learning for Signal Processing, 2018
Strapdown inertial navigation systems are sensitive to the quality of the data provided by the accelerometer and gyroscope. Low-grade IMUs in handheld smart-devices pose a problem for inertial odometry on these devices.
Santiago Cortés Reina   +2 more
semanticscholar   +1 more source

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

open access: yesJournal 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   +3 more
wiley   +1 more source

Field Programmable Gate Array Based Parallel Strapdown Algorithm Design for Strapdown Inertial Navigation Systems [PDF]

open access: yesSensors, 2011
A new generalized optimum strapdown algorithm with coning and sculling compensation is presented, in which the position, velocity and attitude updating operations are carried out based on the single-speed structure in which all computations are executed at a single updating rate that is sufficiently high to accurately account for high frequency angular
Long-Hua Ma   +3 more
openaire   +3 more sources

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

open access: yesSensors, 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

Navigation Using Inertial Sensors [PDF]

open access: yes, 2015
This tutorial provides an introduction to navigation using inertial sensors, explaining the underlying principles. Topics covered include accelerometer and gyro technology and their characteristics, strapdown inertial navigation, attitude determination,
Groves, PD
core  

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

open access: yesSensors, 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

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