Multiple array processors for ocean acoustic problems

Partitioning for array processors

Applications for Array Processors: Guest Editor's Introduction

Localization of multiple acoustic sources in the shallow ocean

An iterative, rotated coordinates inversion technique is applied in conjunction with spatial narrowband filters in matrix form to localize multiple acoustic sources in the shallow ocean. When the iterative, rotated coordinates inversion technique is applied to broadband horizontal line array data designed to simulate a group of moving ships, the bearing of the loudest source is quickly identifi...

Simultaneous localization of multiple broadband non-impulsive acoustic sources in an ocean waveguide using the array invariant.

The array invariant method, previously derived for instantaneous range and bearing estimation of a single broadband impulsive source in a horizontally stratified ocean waveguide, can be generalized to simultaneously localize multiple uncorrelated broadband noise sources that are not necessarily impulsive in the time domain by introducing temporal pulse compression and an image processing techni...

To 1-d Array Processors *

We consider the case of a t-dimensional wvefroni array proc6sor wbcre only one wrdr~nt appcws at any time. We show that in such a situation. this 2-dimensional wavefrcrnt processor can be mapped to a linear array processor if the wavefronts m%er backtrack. Ti-i?r mapping will not increax the number of aeg&xs m each processor element. Two examples, the spoken wn:di rcwgnitian prob!em and the lon...