نتایج جستجو برای: inertial system

تعداد نتایج: 2241569  

2012
Alberto Olivares Javier Ramírez Juan Manuel Górriz Gonzalo Olivares Miguel Damas

Determination of (in)activity periods when monitoring human body motion is a mandatory preprocessing step in all human inertial navigation and position analysis applications. Distinction of (in)activity needs to be established in order to allow the system to recompute the calibration parameters of the inertial sensors as well as the Zero Velocity Updates (ZUPT) of inertial navigation. The perio...

2005
Erik Markert Göran Herrmann Dietmar Müller

This paper presents an approach for modeling an inertial navigation system. This system consists of a 3D acceleration and rotation sensor array, analog and digital error correction, gravitation compensation, supporting point extraction, serial interface and software application. Analogue interfaces are described on lowest abstraction level to allow easy exchange and refinement of components. Mo...

2002
J. F. Ralph K. L. EDWARDS

In this paper, a simulation is used to examine the sensitivity of enhanced laser-guided bombs to errors in the navigation system of the delivery aircraft. Three possible weapon configurations are considered: a laser-guided bomb with an autonomous inertial navigation system, a laserguided bomb with a loosely-coupled inertial navigation system and global positioning system, and a standard laser-g...

ژورنال: کنترل 2020

This paper deals with analyzing gyroscope drift error in the position-independent navigation algorithm of a stable platform inertial system. Most of the stable platform navigation algorithms proposed in the literature have drawbacks of estimating position rates for alignment commands. Not only the estimating position rates are the basic source of position errors, but they also make the alignmen...

2014
Shengli Zhou Fei Fei Guanglie Zhang Yunhui Liu Wen Jung Li

The purpose of this study was to improve the accuracy of real-time ego-motion tracking through inertial sensor and vision sensor fusion. Due to low sampling rates supported by web-based vision sensor and accumulation of errors in inertial sensors, ego-motion tracking with vision sensors is commonly afflicted by slow updating rates, while motion tracking with inertial sensor suffers from rapid d...

2008
Silvere Bonnabel Pierre Rouchon

We consider a left-invariant dynamics on an arbitrary Lie group. We show that it is possible, when the output map is right-left equivariant, to build non-linear observers such that the error equation is autonomous. The theory is illustrated by an inertial navigation example.

Journal: :Int. J. Comp. Sci. Sport 2006
Andreas Krüger Kerstin Witte Jürgen Edelmann-Nusser Silke Hämmerle

The purpose of this study is to clarify the advantages and disadvantages of acceleration measurements in cross country skiing using a body mounted kinematical inertial measurement system. A high profile world cup athlete performed two test-runs in diagonal stride technique on skis and roller skies equipped with an inertial measurement system. In particular the acceleration of the athlete’s cent...

2016
Falko Eckardt Kerstin Witte

In horse back riding the rider’s kinematics was usually measured through visual observation. Today, 3D optical motion capture on treadmills is the golden standard method. However, there are differences between the horse’s treadmill locomotion and the overground locomotion. The aim of this study was to investigate and compare the motion of the rider’s pelvis in walk, trot, and canter under field...

2008
Silvere Bonnabel Philippe Martin Pierre Rouchon

We consider a left-invariant dynamics on an arbitrary Lie group. We show that it is possible, when the output map is compatible with right multiplications, to build non-linear observers such that the error equation is autonomous. The theory is illustrated by an inertial navigation example. Index Terms Lie group, symmetries, invariance, nonlinear asymptotic observers, inertial navigation.

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