Naslov
Through-Wall Sensing With Multifrequency Microwave Radiometry: A Proof-of-Concept Demonstration

Autori
Johnson, Joel T. ; Demir, Metin A. ; Majurec, Ninoslav

Izvornik
IEEE Transactions on Geoscience and Remote Sensing (0196-2892) 47 (2009), 5; 1281-1288

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Active systems; Block walls; Horizontal resolutions; Measured datum; Microwave radiometers; Microwave radiometry; Multi frequencies; Physical process; Proof of concepts; Radio-frequency interferences; Thermal contrasts; Through-wall sensing

Sažetak
A proof-of-concept demonstration of through-wall sensing with microwave radiometry is described. A multifrequency microwave radiometer with 37 channels from 2.1 to 17.35 GHz was used in two experiments to observe objects through a cinder block wall of approximately 20-cm thickness. Measured data show the clear ability of the radiometer to detect thermal contrasts on the interior of the wall. A discussion of the basic physical processes involved in the measurement is provided. When compared with active systems, microwave radiometry for through-wall sensing faces significant challenges, including limitations in ranging, horizontal resolution, and corruption by radio-frequency interference, but also provides complementary capabilities, particularly with regard to thermal information. Further consideration of microwave radiometry appears warranted for applications where thermal information is of interest.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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