Papers Published

1. Swingler, D.N. and Krolik, J., A computationally efficient `doubly-steered' approximation to the Frost beamformer for use with short observation times, Fifth ASSP Workshop on Spectrum Estimation and Modeling (Cat. No.90TH0331-9) (1990), pp. 99 - 103 [SPECT.1990.205554] .
   (last updated on 2007/04/16)

   Abstract:
   It is demonstrated that it is possible to approach the performance of a Frost (1972) beamformer but with significantly less computational effort by pre-steering in only few primary directions equi-spaced in sin(&thetas;) terms, and using linear constraints to perform secondary steering about the primary directions. Various issues concerning the number of taps, the dimension of the constraint space statistical stability and time-bandwidth product are discussed. Results are shown using both simulated and real towed array data

   Keywords:
   approximation theory;signal detection;