BAS Institute of Information and Communication Technologies

Postdoc Achievements in AComInVolodymyr Kudriashov

E-mail: KudriashovVladimir@gmail.com

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Outline

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1. Performance estimation of SmartLab Acoustic Camera.

2. Obtained results on: a) angular resolution enhancement; b) detection of signals; c) vibration estimation using microwave radiometer.

Outcomes:

• Publications in conference proceedings, journals and book chapter

• Participation at scientific meetings

• Concluded agreements

Acoustic Camera Applications:Acoustic Imaging and Signal Analysis

Pictures from WWW3

Acoustic Camera Architecture

The Camera Manufacturer: Brüel & Kjær (Sound and Vibration Measurement A/S)4

Acoustic Camera Phase Calibration

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Number of switching

Channel 2

Field of View Illustration

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Boresight direction; FoV 88 deg.

Elevation

Azimuth

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Ghost images sample

Experiment descriptionCentral frequency 10 kHzBandwidth 10% (1 kHz)Range 0.75 m

Beam steering discrette 1 deg1 deg.Field of view in both angular dimensions 88 deg.Color scheme threshold -15 dB-15 dB

Boresight direction; Threshold -Boresight direction; Threshold -15 dB15 dB; FoV ; FoV 88 deg. 88 deg.

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Signal model

Increments properties

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Probability density function

Likelihood ratio

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Beamforming delivers imaging. Target presence decision - is to be adopted by user.

Ghosts or Info?

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Trg. 2 Trg. 1

Half power or -3dB

Resolution Enhancement

Resolution Enhancement

B&K Capon mod.

Center frequency 10 kHz

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Delay and Sum Capon mod.

Beamforming based-on modified Capon algorithm

Center frequency 5 kHz

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3D viewTop view

Front view Side view

3D Acoustic Imaging

Radiometric Solution

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Features:-Nice (desired) and constant angular resolution for all frequencies-Vibration sound/map-Temperature map-Price does not exceed

Slide 1/2

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Capon-based signal processing for bistatic radiometer which estimates time difference of arrival (TDOA).

ModifiedMaximum Likelihood Method

Regular approach

Radiometric SolutionSlide 2/2

Emitter 1 Emitter 2

Outcome 16 publications in proceedings of conferences

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Published:K.A. Lukin, V.V. Kudriashov, P.L. Vyplavin and V.P. Palamarchuk, Coherent Radiometric Imaging In Range-Azimuth Plane Using Antennas With Beam Synthesizing, 11th European Radar Conference (EuRAD), pp. 45-48. Fiera di Roma, Rome, Italy, 5-10 October, 2014. DOI: 10.1109/EuRAD.2014.6991203.K.A. Lukin, Vyplavin P.L., Palamarchuk V.P., Kudriashov V.V., Kulpa K., Gajo Z., Misiurewicz J., Kulpa J., Accuracy of phase measurements in noise radar, 15th International Radar Symposium (IRS), pp. 1-4. Gdansk, Poland, 16-18 June, 2014. DOI: 10.1109/IRS.2014.6869186.Lukin K., Vyplavin P., Kudriashov V., Lukin S. , Palamarchuk V. , Shkvarko Yu., Sushenko P, Zaets N., Radar tomography using MIMO noise radar and antenna with beam synthesis, IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2014, pp. 798-800. Florence, Italy, 4-9 May, 2014. DOI: 10.1109/ICASSP.2014.6853706.

In printing:

•V.V. Kudriashov, K.M. Alexiev, “Non-stationary random Wiener signal detection rule for case of monostatic reception, Acoustics 2014, pp. 1-3. Sofia, Bulgaria, 28-29 November, 2014. ISSN 1312-4897, year XVI, number 16.

•V.V. Kudriashov, K.M. Alexiev, “Acoustic camera – how to see the sounds, Acoustics 2014, pp. 1-4. Sofia, Bulgaria, 28-29 November, 2014. ISSN 1312-4897, year XVI, number 16.

In review:

•V.V. Kudriashov, Non-stationary Random Wiener Signal Detection Criterion Variants for Case of Monostatic Reception, 7th Balkan Conference in Informatics, pp. 1-8. Craiova, Romania, 2-4 September, 2015.

Outcome 24 publications in journals

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Published:K.A. Lukin, V.V. Kudriashov, P.L. Vyplavin, V.P. Palamarchuk, “Coherent imaging in the range-azimuth plane using a bistatic radiometer based on antennas with beam synthesizing,” IEEE Aerospace and Electronic Systems Magazine, Vol. 29, Iss. 7, July 2014. (Thomson Reuters IF: 0.438)

In printing:

•K.A. Lukin, V.V. Kudriashov, P.L. Vyplavin, V.P. Palamarchuk, S.K. Lukin, Coherent Radiometric Imaging in Range-Azimuth Plane Using Antennas With Beam Synthesizing, International Journal of Microwave and Wireless Technologies. (Thomson Reuters IF: 0.456)

•K.A. Lukin, P.L. Vyplavin, V.P. Palamarchuk, V.V. Kudriashov, K. Kulpa, Z. Gajo, J. Misiurewicz, J. Kulpa, “Accuracy of Phase Measurements in Noise Waveform Synthetic Aperture Radar,” IEEE Transactions on Aerospace and Electronic Systems. (Impact Factor 1.394)

In review:

•V.V. Kudriashov, “A Modified Maximum Likelihood Method for Estimation of Mutual Delay and Power of Noise Signals by Bistatic Radiometer,” Comptes rendus de l'Académie bulgare des Sciences. (SCOPUS IPP: 0.214)

Outcome 3Publication in Springer book

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In review:V.V. Kudriashov, Experimental evaluation of opportunity to improve the resolution of the acoustic maps.

Book: ”New Approaches in Intelligent Control and Image Analysis: Techniques, Methodologies and Applications”

To a book series “Intelligent Systems Reference Library”,

Publisher: SPRINGER-VERLAG,

Editors: Kazumi Nakamatsu (University of Hyogo), Roumen Kountchev (Technical University of Sofia).

Outcome 43 presentations at seminars

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• V.V. Kudriashov, Acoustic camera – how to see the sounds. IICT BAS, seminar of Mathematical Methods for Sensor Information Processing Department, 27 November, 2014.

• Laboratory of vibration and noise in machines, Technical University of Sofia. 20 November, 2014.

• Departments of a) Air Transport b) of Combustion Engines, Automobile Engineering and Transport, c) of Strength of Materials, Faculty of Transport, TU Sofia. 21 January, 2015.

Outcome 53 preliminary agreements on the use of the equipment

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• TU Sofia. Vice rector, Prof., Eng., Ph.D., Ivan Kralov. Noise reduction of railway transport. Acoustic mapping for noise source localization. Condition diagnosis of passing railway carriages.

• TU Sofia. Faculty of Transport. Acoustic diagnostics of internal combustion engines at helicopter repair factory.

• Dundee Precious Metals. Gold/Copper Underground Mine in Chelopech, Bulgaria. Life of mine – to 2025. Gold Production ~ 4 t, in 2013. Noise source localization in acoustic shielding of the mine air conditioning.

Outcome 63 agreements of understanding

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• Laboratory for Nonlinear Dynamics of Electronic Systems, O.Ya. Usikov Institute for Radiophysics and Electronics, National Academy of Sciences of Ukraine. Prof. K. Lukin.

• Research and Development Center of Integrated Informational Radio Electronic Systems and Technologies, Kharkiv National University of Radio Electronics, Ministry of Education and Science of Ukraine. Prof. D. Lekhovytskiy.

• Department of Aircrafts Radio Electronic Systems Design, Faculty of Aircrafts Radio Engineering Systems, National Aerospace University “KhAI”, Ministry of Education and Science of Ukraine. Doc. V. Pavlikov.

Outcome 7Searching for cooperation

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• European Doctoral Programmes in Metamaterials, Virtual Institute “Metamorphose”. EUPROMETA – 27th Doctoral School on Metamaterials, Electromagnetic, acoustic, and thermal invisibility. Department of Engineering, “Roma Tre” University, Roma, Italy, 4-8 May, 2015. Target issue: “Acoustic cloaking: theoretical aspects, experiments, and applications”.

• Brüel & Kjær (Sound and Vibration Measurement A/S) course “Acoustic Imaging and Noise Source Identification”. Copenhagen, Denmark, 28-29 April, 2014. Target issues: a) to clarify existing particularities of workflow with AComIn Smart Lab acoustic camera equipment; b) to discuss potential cooperation with the company.

Outcomes.

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Quantity of works in 2014-2015 is 11. It includes:

•quantity of conf. proceedings papers: 6 (incl. EuRAD, IRS, ICASSP);

•quantity of papers: 4 (Scopus IPP: 0.214; IF: 0.438 … 1.394);

•one chapter in Springer book.All the works are peer-reviewed.

Quantity of works those cited AComIn is 6.It consists of:

•3 conference papers;

•2 journal papers (IPP: 0.214; IF: 0.456);

•Springer book chapter.V. Kudriashov had been employed in AComIn since 12 August, 2014.

Conclusions

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• AComIn SmartLab Acoustic Camera performance was estimated. Obtained characteristics enable to improve its usage.

• Resolution enhancement algorithm was checked in indoor experiments. Obtained results show opportunity to generate acoustic images with higher quality.

• Detection algorithms were proposed to decrease human factor during acoustic noise source localization.

• Non-acoustic technique was proposed to improve quality of acoustic noise source identification.

• Applicability of the camera was considered.