| Autor: |
Nathan Opalinski, Roderick Gray, Mark Golkowski, Edward Slevin, Vijay Harid, Morris B. Cohen, S. K. Patch |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting. |
| Popis: |
Radio frequencies at or below the VLF range (3-30 kHz) are uniquely capable of penetrating highly conductive materials. This can be exploited to detect objects hidden within metal containers. In this paper, we present observations of VLF scattering in such a situation, using VLF transmitters as signals of opportunity. Scattering is detected in the near field from an object inside an aluminum enclosure, and a gradiometric method is presented to differentiate the scattered signal from the plane wave that is incident onto the system. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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