Auroral clutter mitigation in an over-the horizon radar using joint transmit-receive adaptive beamforming

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Authors
  1. riddolls, R.J.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
New data is presented from an over-the-horizon radar experiment featuring simultaneous multiple transmit channels and multiple receive channels. A joint transmit-receive adaptive beamformer is demonstrated, whereby nulls are placed in the direction of auroral clutter echoes on both transmit and receive. It is shown that the level of the clutter suppression produced by the joint transmit-receive beamformer is the multiplicative product of separate adaptive beamformers on transmit and receive, in accordance with theoretical predictions. The joint transmit-receive adaptive beamformer demonstrates a useful technique for controlling auroral ionospheric clutter for an over-the-horizon radar airspace surveillance mission.

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Report Number
DRDC-OTTAWA-TM-2010-265 — Technical Memorandum
Date of publication
01 Dec 2010
Number of Pages
34
DSTKIM No
CA035277
CANDIS No
535056
Format(s):
Electronic Document(PDF)

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