Modeling of acoustic ground vehicle signatures and outdoor sound propagation

Forsvarets forskningsinstitutt (Norwegian Defence Research Establishment) is currently working on a program to develop improved models for both emission and propagation of acoustic waves from ground vehicles, to enable prediction of vehicle signatures as observed by remote sensors. The main purpose of this work in progress is to use such models as an aid to develop improved signal processing methods and pattern recognition algorithms for detection, classification and tracking of military vehicles with acoustic sensors.

[1]  H. Langtangen.  Computational Partial Differential Equations , 1999 .

[2]  M. Biot.  MECHANICS OF DEFORMATION AND ACOUSTIC PROPAGATION IN POROUS MEDIA , 1962 .

[3]  Jean-Pierre Berenger,et al.  A perfectly matched layer for the absorption of electromagnetic waves , 1994 .

[4]  M. Biot.  THEORY OF DEFORMATION OF A POROUS VISCOELASTIC ANISOTROPIC SOLID , 1956 .

[5]  M. Munjal,et al.  On the relation between convective source characteristics and their acoustic counterparts , 1990 .

[6]  Tony F. W. Embleton,et al.  Tutorial on sound propagation outdoors , 1996 .

[7]  B. Engquist,et al.  Absorbing boundary conditions for acoustic and elastic wave equations , 1977, Bulletin of the Seismological Society of America.

[8]  Albert C. Reynolds,et al.  Boundary conditions for the numerical solution of wave propagation problems , 1978 .

[9]  Malcolm J. Crocker,et al.  Review of theoretical and experimental aspects of acoustical modeling of engine exhaust systems , 1994 .

[10]  Boris Gurevich,et al.  Interface conditions for Biot’s equations of poroelasticity , 1999 .

[11]  A comparison between wave propagation in water‐saturated and air‐saturated porous materials , 1990 .

[12]  Hovem,et al.  Sound propagation over layered poro-elastic ground using a finite-difference model , 2000, The Journal of the Acoustical Society of America.

[13]  M. Biot.  Theory of Propagation of Elastic Waves in a Fluid‐Saturated Porous Solid. I. Low‐Frequency Range , 1956 .

[14]  M. Munjal.  Acoustics of Ducts and Mufflers With Application to Exhaust and Ventilation System Design , 1987 .

[15]  Q. H. Liu,et al.  A staggered-grid finite-difference method with perfectly matched layers for poroelastic wave equations. , 2001, The Journal of the Acoustical Society of America.