Near-field radiation pattern distortion of antenna attached to wall in through-the-wall radar imaging

Through - Wall Imaging Radar

Knock and announce missions occur frequently on the urban battlefield. It would be advantageous to locate all of the humans inside an urban structure and obtain a "head count" prior to action. For this reason, we developed a through-wall radar sensor capable of locating moving targets through concrete-walled structures and of displaying the results (in range versus cross range) at a video frame...

Radiation Pattern Analysis of Inverted-F Antenna Mounted on the Side Wall of a Long Cylinder

An analytical technique is proposed for estimation of the radiation pattern of inverted-F antenna (IFA) which is mounted on the side wall of a long cylinder. The method can be applied to describe the IFA radiation in a lot of practical cases. It is indicated that this radiation pattern is a combination of radiation patterns of a horizontal and a vertical small radiator, near the cylinder with a...

Through Wall Imaging with Uwb Radar System

" If we save even one life, we have been cost effective. " Dr. Rochelle Dicker Acknowledgement I give a sincere gratitude to all the people who made it possible for me to write this thesis, especially to my family. I also want to thank to the doc. Ing. Miloš Drutarovsk´y, CSc. for my supervising, to the Dr. Jürgen Sachs and Dr. Rudolf Zetik for their technical and theoretical suggestions and re...

Through the Wall Radar Simulations Using Polarimetric Antenna Patterns

The Impact of Bandwidth on Through-the-wall Radar Imaging

An electromagnetic model is simulated using finite difference time domain for through-the-wall radar imaging. In the numerical simulation narrow-, wide-, and ultra-wide-band signals are used as emission sources. The back projection algorithm is applied to image square and rectangular ideal metal bodies based on a refraction model. The results demonstrate that there is obvious refraction in the ...