Publications [#66663] of Jeffrey L. Krolik

Papers Published

1. Varadarajan, Vijay and Krolik, Jeffrey, Model-based space-time adaptive processing for active sonar, Conference Record - Asilomar Conference on Signals, Systems and Computers, vol. 2 (2004), pp. 1431 - 1435, Pacific Grove, CA, United States
   (last updated on 2007/04/16)

   Abstract:
   In this paper, the problem of partially adaptive space-time adaptive processing (STAP) for towed active sonar arrays operating in a strong reverberation environment under extremely snapshot deficient conditions is considered. In particular, we propose a robust STAP technique which incorporates a physical model for the space-time structure of the received reverberation across range, in order to form a model-based covariance matrix, used to regularize the sample covariance matrix while computing the adaptive weights. Simulation as well as real data results using a bistatic towed active sonar array are presented which demonstrate the improved detection performance obtained using our technique compared to conventional space-time processing and other partially adaptive schemes. © 2004 IEEE.

   Keywords:
   Adaptive systems;Signal receivers;Robustness (control systems);Signal to noise ratio;Set theory;Matrix algebra;Mathematical models;