Guest Professor Ilkka Karasalo, D.Sc. (Tech.)

Ilkka Karasalo

Address 1:

Department of Aeronautical and Vehicle Engineering
MWL
KTH Royal Institute of Technology
SE-100 44 Stockholm, Sweden

Phone:

+46-8-790 80 17

E-mail Ilkka Karasalo

Address 2:

Department of Hydroacoustics
FOI
SE 17290 Stockholm, Sweden

Phone:

+46-8-555 036 27

Fax:

+46-8-555 038 69

ilkka.karasalo@foi.se

Education

Docent, Numerical Analysis, KTH, Stockholm, Sweden, 1984
Dr.Tech. Numerical Analysis, KTH, Stockholm, Sweden. 1975
Civ. Ing. Technical Physics, KTH, Stockholm, Sweden. 1969

Non-academic experience

ASEA AB, Västerås, Sweden, 1976-1978.
Computational Engineer at the Department of Technical Computing.

Research interests

  • Computational Acoustics
  • Acoustics of Layered Media
  • Boundary Integral Equations
  • Inverse methods
  • Large Scale Computations

Selected publications

  • H.G. Schneider, R. Berg, L. Gilroy, I. Karasalo, I. MacGillivray, M. TerMorshuizen, A. Volker: Acoustic scattering by a submarine: results from a benchmark target strength simulation workshop, ICSV10, Stockholm, 7-10 July 2003.42 I.Karasalo: Acoustic target strength of a generic submarine. Miltech 1, Stockholm, 10-11 July 2003.
  • P. Jonsson, I. Karasalo, A. Nilsson, L. Balk, A. Caiti: Underwater acoustic imaging for the assessment of seafloor waste: The SITAR project, ICSV10, Stockholm, 7-10 July 2003.
  • P. Dobbins, P. Blondell, N. Pace, I. Karasalo: SITAR - Locaisation and imaging of seafloor targets with multiple aspect scattering, ICSV10, Stockholm, 7-10 July 2003.
  • P. Skogqvist, I. Karasalo: A fast acoustic scattering method for buried objects, ICSV10, Stockholm, 7-10 July 2003.
  • E. Svensson, I. Karasalo, J-P. Hermand: Time variability of an under-water acoustic channel, ICSV10, Stockholm, 7-10 July 2003.
  • I. Karasalo: Acoustic target strength of generic submarine parts, 26'th Scandinavian Symposium on Physical Acoustics, Ustaoset, Norway, 27-29/1 2003.
  • A. Cederholm, I. Karasalo: Inverse modelling of rubber coated steel plates with a genetic algorithm, Acta Acoustica, Vol 88 (2002), p. 694-698.
  • I. Karasalo: Transient scattering from an object buried in the seabed - Numerical predictions and experimental results, in Proc. 3'rd UK Conference on Boundary Integral Methods, Brighton, UK, 2001.
  • I. Karasalo: Transient bistatic scattering from an object buried in the seabed, in Proc. 17th International Congress on Acoustics, Vol. 1, Italian Acoustical Association, 2001.
  • A.T. Peplow, M. Stojek, I. Karasalo: Boundary integral methods for elastic layered media, Innovative Boundary Element Techniques in Computational Acoustics and Electromagnetics, 14-15/9 2000, University of Bath, UK.
  • I. Karasalo, J. Mattsson: A high-order boundary integral method for acoustic scattering by 3D bodies in a layered fluid-solid medium, Innovative Boundary Element Techniques in Computational Acoustics and Electromagetics, 14-15/9 2000, University of Bath, UK.
  • L. Andersson, I. Karasalo: Range-dependent seabed parameter inversion with JEPE-S and a genetic algorithm, ECUA2000, Lyon, France, 10-13/7 2000.
  • I. Karasalo, J. Mattsson: Analysis of parametric sonar echoes from submerged and buried objects, ECUA2000, Lyon, France, 10-13/7 2000.
  • I. Karasalo, J. Mattsson: Model analysis of a sea trial for detection of submerged and buried objects, 23'rd Scandinavian Symposium on Physical Acoustics, Ustaoset, Norge, 30/1-2/2 2000.
  • R. Berg, I. Karasalo, S. Ivansson: ARTES - a model for acoustic target echo strength analysis in realistic underwater environments, Proc UDT Pacific 2000, 118-122, 2000, Sydney, Australia, 7-9/2 2000.
  • A.T. Peplow, I. Karasalo, M. Stojek: Efficient calculation of Green's Tensors for Elastic Layered Media, Second UK Conference on Boundary Integral Methods 13-14 September 1999, Brunel University, Uxbridge, UK.
  • I. Karasalo, J. Hovem: Transient bistatic scattering from buried objects, Experimental Acoustic Inversion Methods for Exploration of the Shallow Water Environment, Caiti et.al. ed., Kluwer, 2000, p. 161-176. 1999.
  • I. Karasalo, J. Mattsson: Numerical simulation of transient scattering from bodies and shells in a layered fluid-solid medium, Forum Acusticum, Berlin, 1999.
  • S. Ivansson, I. Karasalo: Double-root resonances and complex modal slownesses in a fluid-solid medium, Fourth European Conference on Underwater Acoustics, CNR-IDAC, 1998, pp. 685-690.
  • I. Karasalo, J. Mattsson: Accurate numerical modelling of scattering by 3D bodies and shells in a fluid-solid medium, Fourth European Conference on Underwater Acoustics, CNR-IDAC, 1998, pp. 691-696.
  • I. Karasalo, J. Mattsson: Numerical modelling of acoustic scattering by smooth inclusions in a layered fluid-solid medium, High Frequency Acoustics in Shallow Water, SACLANT Conference Proceedings Series CP-45, 1997, pp. 283-290.
  • I. Karasalo A. Sundstrom: JEPE - a high-order PE-model for range-dependent fluid media, Third European Conference in Underwater Acoustics, FORTH-IACM, 1996, p. 189-194.
  • I. Karasalo: Exact finite elements for wave propagation in range-independent fluid-solid media, Journal of Sound and Vibration (1994) 172(5), pp. 671-688.
  • S. Ivansson, I. Karasalo: Computation of modal wavenumbers and wavenumber integrals using adaptive methods with error control, in Acoustic Signal Processing for Ocean Exploration, J. Moura and I. Lourtie, Eds. Kluwer Academic Publishers, 1993, pp. 63-67.
  • S. Ivansson, I. Karasalo: Computation of modal wavenumbers using an adaptive winding-number integral method with error control, Journal of Sound and Vibration, 161(1), 1993, pp. 173-180.
  • S. Ivansson, I. Karasalo: A high-order adaptive integration method for wave propagation in range-independent fluid-solid media, JASA 92(3), Sept 1992, pp 1569-1577.
  • I. Karasalo: A high-resolution postbeamforming method based on semi- infinite linear optimization, IEEE Transactions on Acoustics, Speech, and Signal Processing, Vol. ASSP-38, No. 1, Jan 1990, pp. 16-22.
  • I. Karasalo, L. Gotherstrom: A Regression Formulation of Pisarenko's Nonlinear Spectral Estimators, Signal Processing 12 (1987), pp.309-311.
  • I. Karasalo: Estimating the covariance matrix by signal subspace averaging, IEEE Transactions on Acoustics, Speech, and Signal Processing, Vol. ASSP-34, No. 1, Feb 1986, pp. 8-12.
  • I. Karasalo, P. Svensson: The Design of Cantor - a New System for Data Analysis, Proc. Third Int. Workshop on Statistical Data Base Management, Luxemburg July 24-26, 1986.
  • I. Karasalo, P. Svensson: Solving data analysis problems with CANTOR, a relational SDBMS, in The Role of Data in Scientific Progress, P.S. Glaeser (ed.), Elsevier Science Publishers B.V. (North-Holland), 1985.
  • I. Karasalo, P. Svensson: An overview of CANTOR - a new system for data analysis, Second International Workshop on Statistical Database Management, Los Altos, California, September 1983.
  • I. Karasalo, I. Namer: Numerical study of a flame in a Karman vortex street, Combustion and Flame 47 (1982), pp. 255-267.
  • I. Karasalo, J. Kurylo: On solving the stiff ODE's of the kinetics of chemically reacting gas flow, Journal of Computational Physics 40 (1981), pp. 167-182.
  • R.H. Guirguis, I. Karasalo, J.R. Creighton, A.K. Oppenheim: Thermochemistry of methane ignition, in Combustion in Reactive Systems, edited by J.R.Bowen et. al., Progress in Astronautics and Aeronautics, Vol 76, 1981, pp. 134-153.
  • I. Karasalo: Stability of axisymmetric annular fluid interfaces at zero contact angle, Archive for Rational Mechanics and Analysis 71 (1979), pp. 257-270.
  • P. Concus, I. Karasalo: A numerical study of capillary stability in a circular cylindrical container with a concave spheroidal bottom, Computer Methods in Applied Mechanics and Engineering 16 (1978), pp. 327-339.
  • I. Karasalo: Minimum norm solutions to single stiff linear analytic differential equations, Journal of Mathematical Analysis and Applications 51 (1975), pp. 516-538.
  • N. Anderson, I. Karasalo: On computing bounds for the least singular value of a triangular matrix, BIT 15 (1975), pp. 1-4.
  • I. Karasalo: A criterion for truncation of the QR-decomposition algorithm for the singular linear least squares problem, BIT 14 (1974), pp. 156-166.
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