19-05-2012, 01:37 PM
Ultra wideband radar for through wall detection from the
RADIOTECT
Ultra wideband radar for through wall detection from the RADIOTECT.pdf (Size: 712.27 KB / Downloads: 48)
The first section of the paper will introduce the philosophy behind the RADIOTECT project,
which includes investigation into through wall applications and through clothes imaging for
rescue and security applications. The second section of the paper will shortly introduce the
project partners. The third section of the paper will concentrate on presenting the latest
ultra-wideband prototype through wall system utilising pseudo random codes as a stimulus
signal, before going on to describe some of the results with the system.
Philosophy of the project
The RADIOTECT project is co-funded through the European Commission’s “Co-operative Research”
scheme in the 6th Framework Programme for Research and Technological Development. The specific
technical goals in the project are to develop high resolution radar (with bandwidth up to 5GHz) and
ultra high-resolution radar (with bandwidth of 8 GHz or more) for use in a number of application
scenarios. Two radar techniques are being advanced in the project: a sub-nano second impulse
technique and an ultra-wideband pseudo-random-code technique. This paper will concentrate on the
application of the ultra-wideband pseudo-random-code technique as a hand held sensor to see
through the walls of buildings or rubble.
Partners
The Swedish Rescue Services Agency is the central supervisory government authority for the
rescue services in Sweden, it has helped develop end user requirements and to plan field tests.
MEODAT GmbH is a provider of high frequency technology provider, its main expertise is pseudoUltra
wideband radar for through wall detection from the RADIOTECT project
random code UWB Radar technology. GEOZONDAS Ltd is a also a provider of high frequency
technology, but its main expertise is sub-nano second impulse UWB Radar technology. The
Engineering Office Klukas Dresden has developed suitable antennas for the imaging techniques.
INGMETAL, has identified packaging technologies and manufactured housing for components and
systems in the project. The Technical University of Košice, Vrije University Brussels, Technical
University of Ilmenau (TUI) and the Technical University of Delft all bring expertise in the area of
radars and digital signal processing. Their key tasks are to extract movements from measured data
(walking people, breathing people) and to reconstruct the geometrical structure of objects from
measured data (the rough interior of a room or the shape of the objects carried at the body). TUI
also brings expertise in UWB-system conception and RF-solid state circuit design. Crabbe
Consulting Ltd expertise is in project management, the development of end user requirements in
liaison between end users and technology developers and the development of exploitation plans.
Pseudo random code through wall system
We consider through wall sensing from two view points. Firstly, to determine whether people are in
a room or building without entering this space due to some dangerous conditions (e.g.
fire/smoke/dust or armed persons). Secondly, to detect people trapped beneath rubble as a result
of an earthquake or explosion etc.