Publications [#66669] of Jeffrey L. Krolik

Papers Published

1. Krolik, Jeffrey and Swingler, David, Focused wide-band array processing by spatial resampling, IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. 38 no. 2 (1990), pp. 356 - 360 [29.103073]
   (last updated on 2007/04/16)

   Abstract:
   The authors present a novel approach for coherently focusing wideband data received by a linear array of sensors. The proposed preprocessing consists of adjusting the spatial sampling rate, or spatially resampling the array outputs as a function of temporal frequency so that broadband sources are aligned in the spatial frequency domain. Spatial resampling has the advantage that it can reduce each wideband source in multigroup multiple-source scenarios to essentially a rank-one representation without preliminary estimates or a priori knowledge of the spatial distribution of the sources. Preliminary simulations performed using a well-known digital interpolation method to implement spatial resampling with the MUSIC spectral estimator have yielded promising results.

   Keywords:
   Signal Processing--Digital Techniques;Computer Simulation;Mathematical Techniques--Interpolation;Sampling;