Results 291 to 300 of about 101,062 (334)

VRTwitch: Enabling Micro-motions in VR with Radar Sensing

SIGGRAPH Asia 2021 Posters, 2021
Micro-motions are often difficult to incorporate in Virtual Reality (VR) while macro-motions are a popular interaction method, due to technological limitations with VR tracking methods. In this poster, we introduce VRTwitch, a forearm-mounted wearable device that is able to sense micro hand motions. VRTwitch uses an array of reconfigurable miniaturized
Ryo Hajika, Tamil Selvan Gunasekaran, Alaeddin Nassani, Yun Suen Pai, Mark Billinghurst   +4 more
openaire   +2 more sources

A macro–micro motion servopneumatic device

Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering, 2012
Micro motion tasks can be found in a wide set of applications, ranging from the assembly of small parts in the semiconductor industry to assisted surgery in medicine. Conventional actuation systems for these types of task are based on the existence of electromagnetic fields (servomotors) or on the existence of some kind of material shape alteration ...
João Falcão Carneiro, Fernando Gomes de Almeida   +1 more
openaire   +1 more source

Micro motion at the failed contact interfaces

Proceedings of the Fifty-First IEEE Holm Conference on Electrical Contacts, 2005., 2005
On inspection of failed connector's contacts, various wear tracks of micro motion are found. The tracks appear as straight line, curve and twisting. The effect of micro motion not only produces wear debris of contact metals and their oxidation products, but also grabbles and accumulates contaminants which cause high and fluctuated contact resistance ...
null Zhanping He, null Liangjun Xu
openaire   +1 more source

Micro-Motions signatures analysis and extraction

2013 International Workshop on Microwave and Millimeter Wave Circuits and System Technology, 2013
Micro-Doppler features can be regarded as a unique signature of an object with movements which provide additional information for classification, recognition and identification of the object. The common analysis method of Micro-Motion is time-frequency transform.
null Zhixing Huang, null Shaohua Liu, null Wei Zhang   +2 more
openaire   +1 more source

Analysis of radar micro-motion model

2018 International Conference on Electronics Technology (ICET), 2018
Micro characteristics is essential for radar target recognition. Micro-motion is defined as some dynamics of a target except its main bulk translation. In general, micro-motions are modelled as the sinusoidal forms. However, micro-motions in reality should include more types of movement forms besides the sinusoidal one.
Xi Huang, Shuanghui Zhang, Yongxiang Liu
openaire   +1 more source

ISAR Imaging with Micro-motion Components

2018 11th UK-Europe-China Workshop on Millimeter Waves and Terahertz Technologies (UCMMT), 2018
In practical radar systems, the micro-motions of some scatting points will perform additional frequency modulation effects on echo signals, resulting in the ineffectiveness of traditional algorithm for ISAR imaging. This paper proposes one non-coherent accumulation based method for removing these effects.
Runqi Chen, Shuanghui Zhang, Ting Gong, Yongxiang Liu   +3 more
openaire   +1 more source

Radar Micro-motion Target Resolution

2006 CIE International Conference on Radar, 2006
Micro-motion such vibration and rotation induces unique phase modulation or Doppler modulation and offers a new way of characterizing objects. When multiple vibration/rotation targets detection and identification are considered, the echo signal is multi-component sinusoidal modulation signal.
Liu Yongxiang, Chen Hangyong, null Li Xiang, Zhuang Zhaowen   +3 more
openaire   +1 more source

Study on Clutter Suppression Method for Micro-motion Target

2019 IEEE 19th International Conference on Communication Technology (ICCT), 2019
In order to solve the problem of the energy loss of echo in the time-domain clutter suppression of narrow-band pulse radar, a novel method based on complex empirical mode decomposition(CEMD) for suppressing clutter, is proposed. Firstly, the model of the rotor micro-motion target in ground clutter, is established.
Saiqiang Xia, Wanyong Cai, Jianwei Liu, Jun Yang   +3 more
openaire   +1 more source

On the design of 6-DOF parallel micro-motion manipulators

Proceedings 2001 IEEE/RSJ International Conference on Intelligent Robots and Systems. Expanding the Societal Role of Robotics in the the Next Millennium (Cat. No.01CH37180), 2002
Parallel manipulators are characterized by symmetry, high precision and stiffness, which allow them to be the mechanisms of micromanipulators. This paper deals with the optimum design of micromanipulator mechanisms. A useful design tool space, named the physical model of the solution space, is proposed.
Xin-Jun Liu, Jinsong Wang, Feng Gao, Liping Wang 0001   +3 more
openaire   +1 more source