HIGH-RESOLUTION PROCESSING OF SHORT-TIME BROADBAND LINE-ARRAY DATA

Authors
  1. Swingler, D.N.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);Saint Mary's Univ, Halifax NS (CAN) Div of Engineering
Abstract
Summarizes work performed on two topics in the general area of "high-resolution processing of short-time broadband line-array data". The first area is that of the 'coherently focussed broadband beamformer'. This field is a very active one for current research as it pairs the enhanced time-bandwidth (TB) product for wideband data with the high-resolution (HR) beamforming techniques hitherto only available for narrowband signals. Report concentrates on a simple doubly-steered implementation of this beamformer which is demonstrated to be viable in practice for producing full spatial maps over the range/sin theta/< or equal to 1. A perceived advantage of the method lies in the fact that it does not require any 'a prior' estimates of the angle(s) of arrival for the source(s) involved. TRUNCATED
Report Number
DREA-CR-88-433 — Contractor Report
Date of publication
15 Jun 1988
Number of Pages
92
DSTKIM No
88-04189
CANDIS No
57394
Format(s):
Hardcopy;Originator's fiche received by DSIS

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