Results 51 to 60 of about 1,575 (164)

Linear Recursive Odometers and Beta-Expansions [PDF]

open access: yesUniform distribution theory, 2016
Abstract The aim of this paper is to study the connection between different properties related to β -expansions. In particular, the relation between two conditions, both ensuring purely discrete spectrum of the odometer, is analyzed. The first one is the so-called Hypothesis
Iacò, Maria Rita   +2 more
openaire   +3 more sources

Train Speed Measurement Approach Based on Wheel-axle Creep Rate Detection

open access: yesChengshi guidao jiaotong yanjiu
Objective In urban rail transit systems, train velocity measuring and positioning technology offers critical information to many applications such as train autonomous driving, collision avoidance, dispatching and directing.
Minjie ZHAO   +4 more
doaj   +1 more source

Scaling limit of the odometer in divisible sandpiles [PDF]

open access: yesProbability Theory and Related Fields, 2017
In a recent work Levine et al. (2015) prove that the odometer function of a divisible sandpile model on a finite graph can be expressed as a shifted discrete bilaplacian Gaussian field. For the discrete torus, they suggest the possibility that the scaling limit of the odometer may be related to the continuum bilaplacian field. In this work we show that
Cipriani, Alessandra   +2 more
openaire   +8 more sources

An Improved ACKF/KF Initial Alignment Method for Odometer-Aided Strapdown Inertial Navigation System

open access: yesSensors, 2018
For a land-vehicle strapdown inertial navigation system (SINS), the problem of initial alignment with large misalignment angle in-motion needs to be solved urgently.
Kang Gao   +4 more
doaj   +1 more source

An Optimization-Based Initial Alignment and Calibration Algorithm of Land-Vehicle SINS In-Motion

open access: yesSensors, 2018
For a running freely land-vehicle strapdown inertial navigation system (SINS), the problems of self-calibration and attitude alignment need to be solved simultaneously.
Kang Gao   +3 more
doaj   +1 more source

Enhancing GNSS and INS Integration for High-Precision and Continuous Positioning Using Odometer Trained With TSFNN

open access: yesIEEE Access
Autonomous driving has become a hot topic in both the academic and industrial sectors in recent years, given the growing market demand. Among the various components of autonomous driving systems (ADS), the positioning and navigation module is of vital ...
Zhihang Qu, Yong Li, Chris Rizos
doaj   +1 more source

Honeybee Navigation: Nature and Calibration of the "Odometer"

open access: yesScience, 2000
There are two theories about how honeybees estimate the distance to food sources. One theory proposes that distance flown is estimated in terms of energy consumption . The other suggests that the cue is visual, and is derived from the extent to which the image of the world has moved on the eye during the trip.
Srinivasan, Mandyan V.   +3 more
openaire   +5 more sources

Mobile Robot Localization Based on Vision and Multisensor

open access: yesJournal of Robotics, 2020
To deal with the low accuracy of positioning for mobile robots when only using visual sensors and an IMU, a method based on tight coupling and nonlinear optimization is proposed to obtain a high-precision visual positioning scheme by combining measured ...
Lina Yao, Fengzhe Li
doaj   +1 more source

Accurate and Efficient LiDAR SLAM by Learning Unified Neural Descriptors

open access: yesIEEE Access
Point clouds generated by LiDAR sensors have been widely exploited in Simultaneous Localization and Mapping (SLAM). However, existing LiDAR SLAM approaches based on hand-crafted features easily suffer from being either overly sparse or dense, causing low-
Baihe Feng, Ying Zhang
doaj   +1 more source

Spoofing Detection Using GNSS/INS/Odometer Coupling for Vehicular Navigation

open access: yesSensors, 2018
Location information is one of the most vital information required to achieve intelligent and context-aware capability for various applications such as driverless cars. However, related security and privacy threats are a major holdback.
Ali Broumandan, Gérard Lachapelle
doaj   +1 more source

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