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A study of different fabrics to increase radar cross section of humans.

Ödman, Torbjörn; Welinder, Jan; Andersson, Nils; Otterskog, Magnus; Lindén, Maria; Ödman, Natalia and Larsson, Christer LU (2015) In Studies in Health Technology and Informatics 211. p.201-206
Abstract
This purpose of the study was to increase the visibility on radar for unprotected pedestrians with the aid of conducting fabric. The experiment comprised measurements of four types of fabric to determine the radio frequency properties, such as radar cross section (RCS) for the vehicle radar frequency 77 GHz and transmission (shielding) in the frequency range 3-18 GHz. Two different thicknesses of polypyrrole (PPy) nonvowen fabric were tested and one thickness for 30 % and 40 % stainless steel fabrics respectively. A jacket with the thinner nonvowen material and one with 40 % steel were tested and compared to an unmodified jacket in the RCS measurement. The measurement showed an increase in RCS of 4 dB for the jacket with the 40 % steel... (More)
This purpose of the study was to increase the visibility on radar for unprotected pedestrians with the aid of conducting fabric. The experiment comprised measurements of four types of fabric to determine the radio frequency properties, such as radar cross section (RCS) for the vehicle radar frequency 77 GHz and transmission (shielding) in the frequency range 3-18 GHz. Two different thicknesses of polypyrrole (PPy) nonvowen fabric were tested and one thickness for 30 % and 40 % stainless steel fabrics respectively. A jacket with the thinner nonvowen material and one with 40 % steel were tested and compared to an unmodified jacket in the RCS measurement. The measurement showed an increase in RCS of 4 dB for the jacket with the 40 % steel lining compared to the unmodified jacket. The transmission measurement was aimed at determining the fabric with the highest transmission of an incoming radio wave. The 30 % steel fabric and the two thicknesses of the nonvowen fabrics were tested. One practical application is for example the use of radar reflective material in search and rescue (SAR) clothes. The study showed that the 30 % steel fabric was the best candidate for further RCS measurements. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Studies in Health Technology and Informatics
volume
211
pages
201 - 206
publisher
IOS Press
external identifiers
  • pmid:25980870
  • scopus:84939244723
ISSN
0926-9630
DOI
10.3233/978-1-61499-516-6-201
language
English
LU publication?
yes
id
b2353ab0-d253-4992-b2ca-05eae64f8b88 (old id 5453039)
date added to LUP
2015-06-16 13:43:16
date last changed
2017-01-01 06:12:32
@article{b2353ab0-d253-4992-b2ca-05eae64f8b88,
  abstract     = {This purpose of the study was to increase the visibility on radar for unprotected pedestrians with the aid of conducting fabric. The experiment comprised measurements of four types of fabric to determine the radio frequency properties, such as radar cross section (RCS) for the vehicle radar frequency 77 GHz and transmission (shielding) in the frequency range 3-18 GHz. Two different thicknesses of polypyrrole (PPy) nonvowen fabric were tested and one thickness for 30 % and 40 % stainless steel fabrics respectively. A jacket with the thinner nonvowen material and one with 40 % steel were tested and compared to an unmodified jacket in the RCS measurement. The measurement showed an increase in RCS of 4 dB for the jacket with the 40 % steel lining compared to the unmodified jacket. The transmission measurement was aimed at determining the fabric with the highest transmission of an incoming radio wave. The 30 % steel fabric and the two thicknesses of the nonvowen fabrics were tested. One practical application is for example the use of radar reflective material in search and rescue (SAR) clothes. The study showed that the 30 % steel fabric was the best candidate for further RCS measurements.},
  author       = {Ödman, Torbjörn and Welinder, Jan and Andersson, Nils and Otterskog, Magnus and Lindén, Maria and Ödman, Natalia and Larsson, Christer},
  issn         = {0926-9630},
  language     = {eng},
  pages        = {201--206},
  publisher    = {IOS Press},
  series       = {Studies in Health Technology and Informatics},
  title        = {A study of different fabrics to increase radar cross section of humans.},
  url          = {http://dx.doi.org/10.3233/978-1-61499-516-6-201},
  volume       = {211},
  year         = {2015},
}