Results 161 to 170 of about 17,770 (216)
Some of the next articles are maybe not open access.
ULTRA: Wideband Ground Penetrating Radar
2006 European Radar Conference, 2006The frequency range employed in ground penetrating radar (GPR) systems is generally limited to 2 GHz because media loss increases dramatically at higher frequencies. Nevertheless, a series of applications exists in the Cultural Heritage field where the development of high frequency systems would significantly benefit, in terms of resolution, from an ...
PARRINI, FILIPPO +7 more
openaire +1 more source
2004 Second International Workshop Ultrawideband and Ultrashort Impulse Signals (IEEE Cat. No.04EX925), 2005
Here, we present a description of a block scheme, characteristics, specific features of design and results of testing for a prototype of the ultrawideband (UWB) radar, which has been developed by Russian UWB group researchers at Moscow Aviation Institute at "analog and digital radio systems" department (www.uwbgroup.ru).
I. Immoreev, E. Ziganshin
openaire +1 more source
Here, we present a description of a block scheme, characteristics, specific features of design and results of testing for a prototype of the ultrawideband (UWB) radar, which has been developed by Russian UWB group researchers at Moscow Aviation Institute at "analog and digital radio systems" department (www.uwbgroup.ru).
I. Immoreev, E. Ziganshin
openaire +1 more source
Proceedings of ISSSTA'95 International Symposium on Spread Spectrum Techniques and Applications, 2002
The requirement for improved performance, in terms of range resolution and target identification, for a range of radar applications, has led to a special category of radar system design. Ultra-wideband radar use a variety of modulation methods such as impulse, FMCW, step frequency, phase coded, etc., but all share the common feature of operation at ...
P. Wheeler, D.J. Daniels
openaire +1 more source
The requirement for improved performance, in terms of range resolution and target identification, for a range of radar applications, has led to a special category of radar system design. Ultra-wideband radar use a variety of modulation methods such as impulse, FMCW, step frequency, phase coded, etc., but all share the common feature of operation at ...
P. Wheeler, D.J. Daniels
openaire +1 more source
Short-distance ultra wideband radars
IEEE Aerospace and Electronic Systems Magazine, 2005The possibility of ultrawideband (UWB) radar usage in various fields for remote measuring the object's motion at short distance is considered. Application of 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.
I.Y. Immoreev +2 more
openaire +1 more source
Ultra wideband radar assembly kit
Proceedings. 2005 IEEE International Geoscience and Remote Sensing Symposium, 2005. IGARSS '05., 2005Ultra wideband sounding has been found to be suitable for a large number of applications in various areas. This results in a variety of different requirements concerning the measurement electronics. The article describes a conception of a measurement system, which provides for high flexibility in adapting performance to the actual need.
J. Sachs +4 more
openaire +1 more source
Ultra wideband impulse radar calibration
IET Conference Publications, 2009Sensing and locating with Ultra Wideband is a quickly evolving technology in automation and disaster monitoring. Features are the high resolution, extremely fast measurements and the moderate cost. For target and object classification these UWB impulse Radars require a full polarimetric calibration.
Pancera, E. +4 more
openaire +1 more source
Ultra wideband ground penetrating radar
13th International Crimean Conference Microwave and Telecommunication Technology, 2003. CriMiCo 2003., 2003Presented here is description of ground penetrating radar on the basis of continuous wave radiation within the frequency band from 2 GHz up to 8 GHz. The basic performances of the radar and examples of the buried objects detection are given.
A.S. Vishnevetsky +5 more
openaire +1 more source
Ultra-Wideband Polarimetric Borehole Radar
2005Stepped-frequency ultra-wide-band polarimetric borehole radar system was developed and tested for subsurface fracture characterization. The radar was tested for subsurface fracture characterization. Scattering matrix of subsurface fractures can be estimated by using the radar system and examples of polarimetric signature were shown.
Motoyuki Sato, Sixin Liu
openaire +1 more source
Ultra wideband, multi-mode radar processing
2012 IEEE Radar Conference, 2012Recent advances in wideband digital waveform generation, analog-to-digital converters (ADC) and high speed parallel processing provide the technology to develop ultra wideband systems for simultaneous synthetic aperture radar (SAR) and ground moving target indication (GMTI) modes.
R. M. Kapfer, M. E. Davis
openaire +1 more source
Survey of Ultra-wideband Radar
2007The development of UWB radar over the last four decades is very briefly summarized. A discussion of the meaning of UWB is followed by a short history of UWB radar developments and discussions of key supporting technologies and current UWB radars. Selected UWB radars and the associated applications are highlighted.
Eric L. Mokole, Pete Hansen
openaire +1 more source