<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Passive sensor systems are attractive for monitoring due to the absence of probing emissions. Two passive systems: an acoustic camera, manufactured by Brüel &amp; Kjær (Sound and Vibration Measurement A/S) and a microwave radiometer are considered in the paper. The performance of these systems is carefully analyzed. The obtained results show the limitations of the acoustic camera in acoustic noise source localization caused by specific side lobes of a pattern of its microphone array. A suggestion how to avoid them is given. Application of microwave bistatic radiometer provides information about thermal electromagnetic radiation of objects in 3D spatial coordinates. The generated radiometric maps contain amplitude and phase information, which is suitable for estimation of displacements/vibration. The received results are applicable in nondestructive testing.</p></abstract>

Passive sensor systems are attractive for monitoring due to the absence of probing emissions. Two passive systems: an acoustic camera, manufactured by Brüel & Kjær (Sound and Vibration Measurement A/S) and a microwave radiometer are considered in the paper. The performance of these systems is carefully analyzed. The obtained results show the limitations of the acoustic camera in acoustic noise source localization caused by specific side lobes of a pattern of its microphone array. A suggestion how to avoid them is given. Application of microwave bistatic radiometer provides information about thermal electromagnetic radiation of objects in 3D spatial coordinates. The generated radiometric maps contain amplitude and phase information, which is suitable for estimation of displacements/vibration. The received results are applicable in nondestructive testing.

Mapping of Acoustic Noise and Microwave Radiation

Institute of Information and Communication Technologies, BAS, 1113 Sofia, Bulgaria

National Technical University “Kharkiv Polytechnic Institute”, 21 Frunze str., 61002 Kharkiv, Ukraine

Parthenope University of Naples, 38 Amm. F. Acton str., 80133 Naples, Italy

O.Ya. Usikov Institute for Radiophysics and Electronics, National Academy of Sciences of Ukraine, 12 Ak. Proskura str., 61085 Kharkiv, Ukraine

Cybernetics and Information Technologies

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Mapping of Acoustic Noise and Microwave Radiation"}

Passive sensor systems are attractive for monitoring due to the absence of probing emissions. Two passive systems: an acoustic camera, manufactured by Brüel &...

Mapping of Acoustic Noise and Microwave Radiation

Published Online: Apr 09, 2016

Page range: 126 - 134

DOI: https://doi.org/10.1515/cait-2016-0010

Keywords
Acoustic camera, beamforming, microwave radiometer, bistatic radiometer, experimental results

© 2016 Volodymyr V. Kudriashov et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mapping of Acoustic Noise and Microwave Radiation

Published Online: Apr 09, 2016

Page range: 126 - 134

DOI: https://doi.org/10.1515/cait-2016-0010

KeywordsAcoustic camera, beamforming, microwave radiometer, bistatic radiometer, experimental results

© 2016 Volodymyr V. Kudriashov et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
Acoustic camera, beamforming, microwave radiometer, bistatic radiometer, experimental results