scispace - formally typeset
Proceedings ArticleDOI

On single sensor-based inertial navigation

Reads0
Chats0
TLDR
The main goal of this research is to investigate the peculiarities of different inertial navigation algorithms, in order to highlight the impact of the sensor's placement, together with inertial sensor issues.
Abstract
In this paper, we compare two novel algorithms for pedestrian navigation based on signals collected by a single wearable Magnetic, Angular Rate, and Gravity (MARG) sensor. The two navigation algorithms, denoted as Enhanced Pedestrian Dead Reckoning (EPDR) and De-Drifted Propagation (DDP), require the placement of the MARG sensor on the foot or on the chest of the test subject, respectively. Different methods for gait characterization are compared, evaluating navigation dynamics by using data collected through an extensive experimental campaign. The main goal of this research is to investigate the peculiarities of different inertial navigation algorithms, in order to highlight the impact of the sensor's placement, together with inertial sensor issues. Considering a closed path (i.e., ending at the starting point), the relative distance error between the starting point and the final estimated position is about 2% of the total travelled distance for both DDP and EPDR navigation algorithms. On the other hand, the error between the initial heading angle and the final estimated one is approximately 10° for EPDR and 7° for DDP, respectively.

read more

Citations
More filters
Proceedings ArticleDOI

Improved formulation of the IMU and MARG orientation gradient descent algorithm for motion tracking in human-machine interfaces

TL;DR: The improved efficiency and accuracy show significant potential for increasing the scope of inertial measurement in applications where low power or greater precision is necessary such as very small wearable or implantable systems.
Journal ArticleDOI

Impact of on-body IMU placement on inertial navigation

TL;DR: A comparison between different inertial systems is presented, investigating the impacts of on-body placement of Inertial Measurement Units and, consequently, of different algorithms for the estimation of the travelled path on the navigation accuracy.
Proceedings ArticleDOI

A multifloor hybrid inertial/barometric navigation system

TL;DR: The inertial (MARG) sub-system, by properly processing the signals collected by the MARG sensors placed on the test subject's feet, reconstructs the two-dimensional navigation pattern by applying a Zero velocity UPdaTe (ZUPT) technique.
Journal ArticleDOI

A Hybrid Framework for Mitigating Heading Drift for a Wearable Pedestrian Navigation System through Adaptive Fusion of Inertial and Magnetic Measurements

TL;DR: In this article, a hybrid framework that integrates a foot-state classifier that triggers the zero-velocity update (ZUPT) algorithm, zero-angular-rate update algorithm, and a state lock, a magnetic disturbance detector, a human-motion-classifier-aided adaptive fusion module (AFM), and an error-state Kalman filter (ESKF) that estimates the optimal systematic error.
Proceedings ArticleDOI

A Novel Step Detection and Step Length Estimation Algorithm for Hand-held Smartphones

TL;DR: An innovative step detection algorithm which is independent of the holding mode, the only assumption being that the device is hand-held and its movement is related to the upper body displacement during walking is proposed.
References
More filters
Proceedings ArticleDOI

Estimation of IMU and MARG orientation using a gradient descent algorithm

TL;DR: This paper presents a novel orientation algorithm designed to support a computationally efficient, wearable inertial human motion tracking system for rehabilitation applications, applicable to inertial measurement units (IMUs) consisting of tri-axis gyroscopes and accelerometers, and magnetic angular rate and gravity sensor arrays that also include tri- axis magnetometers.
Journal ArticleDOI

Assessment of spatio-temporal gait parameters from trunk accelerations during human walking

TL;DR: The duration of subsequent stride cycles and left/right steps, and estimations of step length and walking speed can be obtained from lower trunk accelerations, which can be the basis for an analysis of other signals within the stride cycle.
Journal ArticleDOI

WiFi-based indoor positioning

TL;DR: Simulation results show that the WiFi-based positioning approach can achieve 1 m accuracy without any hardware change in commercial WiFi products, which is much better than the conventional solutions from both academia and industry concerning the trade-off of cost and system complexity.
Proceedings ArticleDOI

A comparison of Pedestrian Dead-Reckoning algorithms using a low-cost MEMS IMU

TL;DR: This paper uses low-performance Micro-Electro-Mechanical inertial sensors attached to the foot of a person, and describes, implements and compares several of the most relevant algorithms for step detection, stride length, heading and position estimation.
Journal ArticleDOI

Keeping a Good Attitude: A Quaternion-Based Orientation Filter for IMUs and MARGs

TL;DR: A novel complementary filter for MAVs that fuses together gyroscope data with accelerometer and magnetic field readings and outperforms other common methods, using publicly available datasets with ground-truth data recorded during a real flight experiment of a micro quadrotor helicopter.
Related Papers (5)