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Development of a new millimeter-wave integrated-circuit sensor for surface and subsurface sensing

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2 Author(s)
Joongsuk Park ; Dept. of Electr. Eng., Texas A&M Univ., College Station, TX ; Cam Nguyen

A new millimeter-wave sensor employing the stepped-frequency radar technique has been developed using microwave and millimeter-wave integrated circuits and demonstrated for surface and subsurface sensing. The sensor is based on the coherent super-heterodyne scheme and operated from 29.72-37.7GHz. It has been used to profile the surface of a sample with range accuracy within plusmn0.1 cm. The sensor was also used to monitor continuously varying liquid levels in a tank and was able to detect the displacement of liquid level with less than plusmn0.1 cm error. The sensor successfully detected and located anti-personnel mines buried under sand with less than 1.8 and 0.2 cm of errors in horizontal and vertical directions, respectively

Published in:

Sensors Journal, IEEE  (Volume:6 ,  Issue: 3 )