Comparison between two methods for small scatterer localization

The problem of localizing small scatterers is dealt with. In particular, the Time-Reversal MUSIC and the linear distributional approach are compared from the achievable resolution and the stability against the noise point of view. The study is conducted for a two-dimensional and scalar geometry and for the case of perfect electric conducting scatterers.

[1]  Gang Shi,et al.  Maximum likelihood estimation of point scatterers for computational time-reversal imaging , 2005, Commun. Inf. Syst..

[2]  Mario Bertero,et al.  Introduction to Inverse Problems in Imaging , 1998 .

[3]  R. E. Kleinman,et al.  The Rayleigh region , 1965 .

[4]  A. Devaney,et al.  Time-reversal imaging with multiple signal classification considering multiple scattering between the targets , 2004 .

[5]  I. Arai,et al.  Super-resolution imaging for point reflectors near transmitting and receiving array , 2004, IEEE Transactions on Antennas and Propagation.

[6]  A. Liseno,et al.  Linear distribution imaging of thin metallic cylinders under mutual scattering , 2005, IEEE Transactions on Antennas and Propagation.

[7]  Sean K Lehman,et al.  Transmission mode time-reversal super-resolution imaging. , 2003, The Journal of the Acoustical Society of America.

[8]  Mathias Fink,et al.  Decomposition of the time reversal operator: Detection and selective focusing on two scatterers , 1996 .

[9]  R. O. Schmidt,et al.  Multiple emitter location and signal Parameter estimation , 1986 .

[10]  Mathias Fink,et al.  The iterative time reversal process: Analysis of the convergence , 1995 .

[11]  F. K. Gruber,et al.  Noniterative analytical formula for inverse scattering of multiply scattering point targets. , 2006, The Journal of the Acoustical Society of America.

[12]  A. D. Yaghjian,et al.  Low-frequency scattering from two-dimensional perfect conductors , 1991, Antennas and Propagation Society Symposium 1991 Digest.