Radar R&D

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UWB Radar and Radio is a new and relatively novel field of research and development. The application areas are for example material investigations, positioning,  distance measurement, detection, 3D-imaging, tomography, and tracking. The radar and radar technology has its advantages in harsh environments, for example behind walls, under the ground, through vapor and smoky atmospheres, and through different kind of material containers.

Radar to detect of leaks in building elements

Location of adventitious openings and leakage of air in buildings can be detected with a non-contact and non-destructive method based on ultra-wide bandwidth radar technology.

Moisture content measurement in lightweight concrete with radar

Moisture in buildings is common and can lead to damage. The purpose and aim of this report is to see if there is a connection between radar signals and moisture content and to determine if radar technology is a useful method for measuring moisture content in a building element (Swedish report).

Wall compensation algoritms

A technique for wall compensation in the ultra-wideband (UWB) through-wall imaging radar is presented. The UWB system can be utilize in high precision measurements, but due to phase distortion and amplitude attenuation caused by the wall the precision is limited, the target is displaced, and the image is defocused.

UWB antennas

Basic properties and new design principles of ultra wideband Vivaldi antennas are presented and discussed in this paper. The focus will be on the modeling of Vivaldi antenna design curves, by which it is constructed; its simulation results, realization and the measurements.

Comparison study of UWB technologies

This paper compares two dominant Ultra Wide Band(UWB) radar technologies Impulse and M-sequence for static human being detection in free space. The hardware and software platform for each system is described separately. 

Comparison of Radar Back-Scattering

An Ultra Wide Band (UWB) radar is used to measure the backscattering of a human and a human phantom. The choice of material and shape for the human phantom is discussed. The dielectric properties of the material (wet sand) used in the experiment are measured by a retromodeling technique and also calculated by mixture formulas.