Results 121 to 130 of about 1,852 (166)

An ultra-wideband radar approach to nondestructive testing

2014 IEEE International Conference on Ultra-WideBand (ICUWB), 2014
In this paper a new method for nondestructive testing (NDT), applied to carbon fiber composite materials, is investigated. The approach is based on the comparison between the electromagnetic signal reflected by the carbon fiber composite sheet under test, when an ultra-wideband (UWB) signal is incident on it, and the one reflected by a healthy sheet ...
S. Gubinelli, PAOLINI, ENRICO, GIORGETTI, ANDREA, M. Mazzotti, A. Rizzo, TROIANI, ENRICO, CHIANI, MARCO   +6 more
openaire   +1 more source

Ultra-wideband Radar Technology

2018
Preface Main Features of Ultra-Wideband (UWB) Radars and Differences from Common Narrowband Radars, Igor I. Immoreev Improved Signal Detection in UWB Radars, Igor I. Immoreev High-Resolution Ultra-Wideband Radars, Nasser J. Mohamed Ultra-Wideband Radar Receivers, James D.
openaire   +1 more source

Practical Application of Ultra-Wideband Radars

2006 3rd International Conference on Ultrawideband and Ultrashort Impulse Signals, 2006
The possibility of ultra-wideband (UWB) radar use in various fields for remote measuring of the object's motion at short distance is considered. As an illustration UWB radar in medicine for remote measuring of patient's heart activity and respiration is shown. The measuring method is described and practical results of tests are cited.
openaire   +1 more source

Ultra-Wideband Ground Penetrating Impulse Radar

2002
On the basis of numerical simulations of different GPR scenarios and field experience the technical requirements for the impulse GPR system specialized on detection and identification of small and shallow buried objects have been formulated. These requirements have been partly realized in the video impulse ground penetrating radar system developed in ...
Alexander G. Yarovoy, Piet van Genderen, Leo P. Ligthart   +2 more
openaire   +1 more source

Macro-motion detection using ultra-wideband impulse radar

2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2014
Radar has the advantage of being able to detect hidden individuals, which can be used in homeland security, disaster rescue, and healthcare monitoring-related applications. Human macro-motion detection using ultra-wideband impulse radar is studied in this paper.
, Xin Li, , Dengyu Qiao, , Ye Li
openaire   +2 more sources

Ultra-Wideband Sparse Array Imaging Radar

2005
The experimental data presented above indicate that forward looking vehicle mounted impulse radar systems using broad beamed antennas are susceptible to clutter which in some situations arises predominantly from scatterers outside the area of interest for target detection.
Graeme N Crisp, Christopher R Thornhill, Ray Rowley, Justin Ratcliffe   +3 more
openaire   +1 more source

TIME-DOMAIN ULTRA-WIDEBAND MICROWAVE IMAGING RADAR SYSTEM

Journal of Electromagnetic Waves and Applications, 2002
This paper describes the time-domain (TD) ultrawideband (UWB) microwave imaging radar system developed at the University of Illinois at Urbana-Champaign recently. The TD-UWB imaging radar system successfully combines the UWB impulse radar system and inverse scattering imaging algorithms for nondestructive evaluation (NDE) and remote sensing purposes in
Chew, WC, Chen, FC
openaire   +4 more sources

Classification of Human Posture from Radar Returns Using Ultra-Wideband Radar

2018 40th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC), 2018
There is a great need for new technology that helps ensure the well-being of senior citizens who have compromised health and are at an elevated risk of injury due to falls. Being able to detect posture and postural changes may be helpful in prediction and prevention of impending falls.
Zachary, Baird, Sreeraman, Rajan, Miodrag, Bolic   +2 more
openaire   +2 more sources

Resolution of ultra-wideband radar signals

IEE Proceedings - Radar, Sonar and Navigation, 1999
The paper considers the range resolution of ultra-wideband signals. The situation of targets, adjacent in range, of significantly different amplitude, as in the case of propagation in lossy media, is examined. Several examples, each taken from three general classes of waveform, are examined.
openaire   +1 more source

Ultra-wideband low-cost phased-array radars

IEEE Transactions on Microwave Theory and Techniques, 2005
Emerging radar applications require phased arrays that can operate over wide bandwidths to support multiband/multifunction operation. In response to that need, this paper presents a cost-effective implementation for extremely wide-band phased-array radars. Two designs are demonstrated, one operating from 3 to 12 GHz and the other operating from 8 to 20
C.T. Rodenbeck, null Sang-Gyu Kim, null Wen-Hua Tu, M.R. Coutant, null Seungpyo Hong, null Mingyi Li, null Kai Chang   +6 more
openaire   +1 more source