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International Journal on Smart Sensing and Intelligent Systems

Professor Subhas Chandra Mukhopadhyay

Exeley Inc. (New York)

Subject: Computational Science & Engineering, Engineering, Electrical & Electronic


eISSN: 1178-5608



VOLUME 10 , ISSUE 3 (September 2017) > List of articles


A. Lay-Ekuakille * / N.I. Giannoccaro / S. Casciaro / F. Conversano / R. Velazquez

Keywords : Acoustic sensing, Beamforming, Ultrasonic shape detection, DOA, Distance measurement, array of sensors, interference-to-noise ratio (INR), signal-to-noise ratio (SNR).

Citation Information : International Journal on Smart Sensing and Intelligent Systems. Volume 10, Issue 3, Pages 718-734, DOI:

License : (CC BY-NC-ND 4.0)

Received Date : 21-June-2017 / Accepted: 21-July-2017 / Published Online: 01-September-2017



Acoustic sensing is a viable approach for solving issues related to many applications, namely, biomedical, distance measurements, mechanical, health infrastructure monitoring, etc. It is generally sustainable and of no negative impact on the object under test. The use of acoustic sensing under beamforming technique is an important asset to be exploited, especially for the aforementioned applications. This paper illustrates a generalized approach of modeling and designing a full beamfomer using two specific classes: LCMP (Linear Constrained Minimum Power) beamformers that are used to overcome robustness limitations and MVDR (Minimum Variance Distortionless Response) beamformers. Any aspect of modeling and designing is always related to the DOA (Direction of Arrival). The obtained results are based on assumptions extracted from an actual case of constructed system.

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  1. J. Wang, Q. Feng, R. Wu, Z. Su, “A constant-beamwidth beamforming method for acoustic imaging”, Proceedings of IEEE Antennas and Propagation International Symposium, pp. 4236-4239, 2007, Honolulu, USA.
  2. B.D. Van Veen, K.M. Buckley, Beamforming: “A versatile approach to spatial filtering”, IEEE ASSP Magazine, vol. 5, no.2, pp.4-24, 1988
  3. G. Okamoto, “Jammer nulling via low complexity blind beamforming algorithm”, Proceedings IEEE Antennas and Propagation International Symposium, pp. 25-28, 2007, Honolulu, USA.
  4. O.L. Frost III, “An algorithm for Linearly Constrained Adaptive Array Processing”, Proceedings of IEEE, vol. 60, pp.926-935, August 1972.
  5. A. Lay-Ekuakille, A. Trotta, G. Vendramin, “Beamforming based acoustic imaging for distance retrieval”, Proceedings of IEEE I2MTC, pp. 1466-1470 2008, Victoria, Vancouver Island, Canada.
  6. E. Warsitz and R. Haeb-Umbach, “Acoustic filter-and-sum beamforming by adaptive principal component analysis”, Proceedings of IEEE ICASSP, pp. 797-800, 2005, Philadelphia, USA.
  7. G. Soloperto, F. Conversano, A. Greco, E. Casciaro, A. Ragusa, S. Leporatti, A. Lay-Ekuakille, S. Casciaro, “Multiparametric Evaluation of the Acoustic Behaviour of Halloysite Nanotubes for Medical Echographic Image Enhancement”, IEEE Transactions on Instrumentation & Measurement, vol. 63, no.6, pp. 1423 – 1430, 2014,
  8. S. Casciaro, F. Conversano, P. Pisani, A. Greco, A. Lay-Ekuakille, M. Muratore, “A New Ultrasound Parameter for Osteoporosis Diagnosis: Clinical Validation on Normal- and Under-Weight Women “, Proceedings of IEEE MeMea 2015, pp. 250-254, 2015, Turin, Italy
  9. R.O. Schmidt, “Multiple emitter location and Signal parameter estimation”, Proceedings of RADC Spectrum Estimation Workshop, pp.243-258, Griffiths AFB, Rome, New York, 1979.
  10. R.O. Schimidt, Multiple emitter location and signal parameter estimation, in Proc. of RADC Special Estimation Workshop, pp.243-258, Griffiths AFB, New York, , Reprinted in IEEE Trans.AP-34, pp.276-280, 1986
  11. H. Krim and M. Viberg, “Two decades of array signal processing research: The parametric approach “, IEEE Signal Processing Magazine, vol.13, pp 67-94, 1996.
  12. A. Margarita, S.J. Flores, L. Rubio, V. Almenar, J.L. Corral, “Application of MUSIC for spatial reference beamforming for SDMA in a smart antenna for GSM and DECT”, Vehicular Technology Conference, pp. 123-126, 2001.
  13. N.I. Giannoccaro, A. Massaro, L. Spedicato and A. Lay-Ekuakille, “Detection Analysis of Small Notches Damages Using a New Tactile Optical Device”, IEEE/ASME Transactions on Mechatronics, vol. 20, no.1, pp.313-320, 2015.
  14. Y. Rockah and P.M. Schultheiss, “Array shape calibration using sources in unknown locations-part II: Near-field sources and estimator implementation”, IEEE Trans. Acoust.,Speech, Signal process, vol.35, no.6, pp.724-735, 1987.
  15. P. Vergallo, A. Lay-Ekuakille, “Brain Source Localization: A New Method Based on Music Algorithm and Spatial Sparsity”, Rev. Sci. Instrum. 84, 085117-085123, 2013.
  16. K.L. Bell, H.L. Van Trees, “Adaptive Beamforming for Spatially Spread Sources”, Proceedings of IEEE Signal Processing Workshop, pp. 1-4, 1998.
  17. A. Lay-Ekuakille, G. Vendramin, A. Trotta, “Acoustic Sensing for Safety Automotive Applications”, Proceedings of the 2nd International Conference on Sensing Technology, pp. 1-7, 2007 Palmerston North, New Zealand.
  18. A. Lay-Ekuakille, P. Vergallo, D. Saracino, A. Trotta, “Optimizing and Post Processing of a Smart Beamformer for Obstacle Retrieval”, IEEE Sensors Journal, vol.12, no. 5, pp.1294-1299, 2012
  19. H. Van Trees, “Optimum Array Processing (Part IV): Detection, Estimation, and Modulation Theory”, Wiley Interscience, New York, 2002
  20. J. J. Fuchs, “Linear programming in spectral estimation: Application to array processing,” Proceedings of IEEE International Conference on Acoustics, Speech, and Signal Processing, vol. 6, pp. 3161–3164, 1996
  21. J. J. Fuchs, “On the application of the global matched filter to DOA estimation with uniform circular arrays,” IEEE Trans. Signal Processing, vol. 49, no. 4, pp. 702–709, 2001.
  22. A. Lay-Ekuakille., C. Pariset, A. Trotta, “FDM-based Leak Detection of Complex Pipelines: Robust Technique for Eigenvalues Assessment”, Measurements Science Technology, Vol.21, no.11, pp.1-8, 2010
  23. N. I. Giannoccaro, L. Spedicato , A. Messina, A. Lay-Ekuakille, “Ultrasonic visibility tests and estimation of specular target plane orientation through a robotic scanning”, Proceedings of IEEE SSD 2014, pp.1-6, 2014, Castelldefels-Barcelona, Spain
  24. P. Vergallo, A. Lay-Ekuakille, D. Caratelli, ”Sparsity of the Field Signal-Based Method for Improving Spatial Resolution in Antenna Sensor Array Processing”, Progress in Electromagnetics Research – PIER, vol.142, pp.369-388, 2013
  25. G. Soloperto, F. Conversano, E. Casciaro, A. Greco, G. Gigli, A. Lay-Ekuakille, S. Casciaro, “Laser Fluence and Exposure Time Effects on Optoacoustic Signal from Gold Nanorods for Enhanced Medical Imaging”, Proceedings of IEEE I2MTC 2014, pp.1139-1143, 2014, Montevideo, Uruguay.
  26. S. Casciaro, P. Pisani, G. Soloperto, A. Greco, A. Lay-Ekuakille, F. Conversano, “An Innovative Ultrasound Signal Processing Technique to Selectively Detect Nanosized Contrast Agents in Echographic Images”, IEEE Transactions on Instrumentation & Measurement, vol. 64, no.8, pp. 2136-2145, 2015,
  27. M.G. De Giorgi, A. Ficarella, A. Lay-Ekuakille, “Monitoring Cavitation Regime from Pressure and Optical Sensors: Comparing Methods using Wavelet Decomposition for Signal Processing”, IEEE Sensors Journal, vol.15, no.8, pp. 4684-4691, 2015
  28. V. Bhateja, H. Patel, A. Krishin, A. Sahu, A. Lay-Ekuakille, "Multimodal Medical Image Sensor Fusion Framework Using Cascade of Wavelet and Counterlet Transform Domains", IEEE Sensors Journal, vol.15, no.12, pp.3783-3790, 2015