| Autor: |
Heifetz, Alexander, Bakhtiari, Sasan, Gopalsami, Nachappa, Elmer, Thomas W., Mukherjee, Souvik, Chimenti, Dale E., Bond, Leonard J. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2018, Vol. 1949 Issue 1, pN.PAG-N.PAG, 11p, 1 Diagram, 4 Charts, 3 Graphs |
| Abstrakt: |
We study analytically and numerically signal sensitivity in remote sensing measurements of weak mechanical vibration of structures made of typical construction geomaterials, such as concrete. The analysis includes considerations of electromagnetic beam atmospheric absorption, reflection, scattering, diffraction and losses. Comparison is made between electromagnetic frequencies of 35GHz (Ka-band), 94GHz (W-band) and 260GHz (WR-3 waveguide band), corresponding to atmospheric transparency windows of the electromagnetic spectrum. Numerical simulations indicate that 94GHz frequency is optimal in terms of signal sensitivity and specificity for long-distance (>1.5km) sensing of weak multi-mode vibrations. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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