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Journal of Radio Electronics Online scientific journal · eISSN 1684-1719
2010, № 10 · RADIO ENGINEERING

Holographic Subsurface Radar: Technology and Application

S.I. Ivashov1, V.V. Razevig1, I.A. Vasilev1, A.V. Zhuravlev1, T.D. Bechtel2, L. Capineri3

1 МГТУ им. Н.Э. Баумана, Russia
2 Франклин и Маршалл колледж США, USA
3 Университет Флоренции Италия, Italy
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Abstract

Holographic subsurface radars (HSR) are not in common usage now; possibly because of the historical view amongst radar practitioners that high attenuation of electromagnetic waves in most media of interest will not allow sufficient depth of penetration. It is true that the fundamental physics of HSR prevent the possibility to change receiver amplification with time (i.e. depth) to adapt to lossy media (as is possible with impulse subsurface radar or ISR). However, use of HSR for surveying of shallow subsurface objects, defects, or inhomogeneities is an increasingly proven area of application. In this case, HSR can record images with higher resolution than is possible for ISR images. The RASCAN family of holographic radars is presented along with technical specifications and typical case histories. Among the applications considered are civil and historic building surveys, non-destructive testing of dielectric materials, security applications, and humanitarian demining. Each application area is illustrated by relevant data acquired in laboratory experiments or field tests. This paper presents experiments with RASCAN imaging in media with different degrees of attenuation, and illustrates the principle of HSR through an optical analogy.

  • Holographic subsurface radar
  • Impulse subsurface radar
  • non-destructive testing
  • Optical analogy
  • security applications
Аннотация (на русском)

Разработка голографических подповерхностных радиолокаторов типа РАСКАН и их применение

В настоящее время голографические подповерхностные радиолокаторы (ГПР) не распространены широко из-за того, что сильное затухание электромагнитных волн в большинстве сред, представляющих интерес, не позволяет достигнуть достаточной глубины проникновения. Однако использование ГПР для наблюдения мелких подповерхностных объектов, обнаружения дефектов и неоднородностей становится все более распространенным. В этом случае ГПР могут обнаруживать объекты с большим разрешением, чем импульсные подповерхностные радиолокаторы. В работе рассмотрены голографические радиолокаторы типа РАСКАН, их технические параметры и области применения. Каждая область применения проиллюстрирована результатами лабораторных либо полевых испытаний.

For citation

Ivashov S.I., Razevig V.V., Vasilev I.A., Zhuravlev A.V., Bechtel T.D., Capineri L. Holographic Subsurface Radar: Technology and Application // Journal of Radio Electronics. – 2010. – No. 10.

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