Results 111 to 120 of about 1,852 (166)

Ultra wideband impulse radar calibration

IET Conference Publications, 2009
Sensing 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., Battacharya, A., Veshi, E., Zwick, T., Wiesbeck, W.   +4 more
openaire   +1 more source

Ultra wideband ground penetrating radar

13th International Crimean Conference Microwave and Telecommunication Technology, 2003. CriMiCo 2003., 2003
Presented 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, A.K. Zverev, A.N. Fedotov, V.P. Averianov, I.Yu. Gorshkov, A.V. Kuznetsov   +5 more
openaire   +1 more source

Ultra-Wideband Multifunctional Communications/Radar System

IEEE Transactions on Microwave Theory and Techniques, 2007
We have designed, simulated, fabricated, and tested an ultra-wideband (UWB) multifunctional communication and radar system utilizing a single shared transmitting antenna aperture. Two surface acoustic wave bandpass chirp filters were used to modulate the radar and communications pulses, generating linear frequency modulation waveforms with opposite ...
George N. Saddik, Rahul S. Singh, Elliott R. Brown   +2 more
openaire   +1 more source

Ultra-Wideband Polarimetric Borehole Radar

2005
Stepped-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, 2012
Recent 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

2007
The 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

RFI suppression for ultra wideband radar

IEEE Transactions on Aerospace and Electronic Systems, 1997
An estimate-and-subtract algorithm is presented for the real-time digital suppression of radio frequency interference (RFI) in ultrawideband (UWB) synthetic aperture radar (SAR) systems used for foliage- and ground-penetrating imaging. The algorithm separately processes fixed- and variable-frequency interferers.
T. Miller, L. Potter, J. McCorkle
openaire   +1 more source

Handheld Ultra-Wideband Through-Wall Radar

2017 Seminar on Detection Systems Architectures and Technologies (DAT), 2017
Through the Wall RADAR plays a crucial role in urban environment and military area. This kind of systems operate in ultra wideband (UWB) for penetration through obstacle materials such as drywall, brick wall, autoclaved aerated concrete wall and concrete wall.
Gokhan Inanan, Gokhan Pay, Volkan Hamurcu, Ozgur Sutcuoglu   +3 more
openaire   +1 more source

Waveform synthesis for ultra wideband radar

Proceedings of 1994 IEEE National Radar Conference, 2002
This paper investigates the Fourier synthesis method of waveform generation for ultrawide band (UWB) radar. From Fourier theory, any periodic signal can be decomposed into a sum of weighted sinusoids. Conversely a periodic signal can be generated by a suitably weighted sum of sinusoids.
G.S. Gill, H.F. Chiang, J. Hall
openaire   +1 more source

Interferoceiver and ultra-wideband radar receiver

SPIE Proceedings, 2006
Ultra-wideband radar leads to optimum slant range resolution in radar imaging. There is a major problem in receiving short duration ultra-wideband radar signals and preserving their wave forms, because the conventional radar receivers are super heterodyne receivers.
openaire   +1 more source