Results 11 to 20 of about 10,064,891 (293)
High-Precision Positioning Stage Control Based on a Modified Disturbance Observer
SensorsHigh-precision positioning systems play a crucial role in various industrial applications. This study focuses on improving the performance of a high-precision multi-degrees-of-freedom (DOF) stage.
Hui Wang +3 more
doaj +2 more sources
Enhanced Positioning Techniques for Hybrid Wireless Networks [PDF]
, 2011 The objective of this paper is to propose a reliable and accurate positioning method, which provides location estimates for the mobile user in hybrid wireless network (IEEE802.11/WiFi, IEEE802.16/WiMAX and LTE technologies).
Zvikhachevskaya, Anna +4 more
core +4 more sources
Precise positioning in real-time using GPS-RTK signal for visually impaired people navigation system [PDF]
, 2010 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University, 24/9/2010.This thesis presents the research carried out to investigate and achieve highly reliable and accurate navigation system of guidance for visually ...
Al-Salihi, Nawzad Kameran
core +7 more sources
Broadband Ultrasonic Location Systems for Improved Indoor Positioning [PDF]
, 2006 Ultrasonic location systems are a popular solution for the provision of fine-grained indoor positioning data. Applications include enhanced routing for wireless networks, computer-aided navigation, and location-sensitive device behavior. However, current
Hopper, Andy, Hazas, Michael
core +4 more sources
Constrained Control Design for Dynamic Positioning of Marine Vehicles with Control Allocation [PDF]
, 2009 In this paper, we address the control design problem of positioning of over-actuated marine vehicles with control allocation. The proposed design is based on a combined position and velocity loops in a multi-variable anti-windup implementation together ...
Tristan Perez +3 more
core +3 more sources
The Four Key Challenges of Advanced Multisensor Navigation and Positioning [PDF]
, 2014 The next generation of navigation and positioning systems must provide greater accuracy and reliability in a range of challenging environments to meet the needs of a variety of mission-critical applications.
Martin, H +11 more
core +1 more source
Practical classification methods for indoor positioning [PDF]
, 2012 Location awareness is of primary importance in a wealth of applications such as transportation, mobile health systems, augmented reality and navigation.
Mihaylova, Lyudmila +2 more
core +4 more sources
Head-Positioning Control Using Virtual Resonant Modes in a Hard Disk Drive
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2007 In conventional control systems in hard disk drives, it is difficult to compensate for disturbances above the primary mechanical resonance. In this paper, a design method that uses a virtual resonant mode in head-positioning systems of hard disk drives ...
Takenori ATSUMI
doaj +1 more source
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2019 To increase recording density, a head positioning control system of a hard disk drive (HDD) has to compensate for vibration due to mechanical resonances of the system.
Shota YABUI +2 more
doaj +1 more source
Vibration control with thin-film-coil actuator for head-positioning system in hard disk drives
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2015 In a head-positioning system of hard disk drives, various mechanical resonances may degrade performance or stability of the control system. In these mechanical resonances, a torsional mode of a head-stack assembly (HSA), in which a resonant frequency is ...
Takenori ATSUMI +3 more
doaj +1 more source