A Canadian Perspective on High-Frequency Over-the-Horizon Radar

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Authors
  1. Riddolls, R.J.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
High-Frequency (HF) radar technology has been pursued by the Canadian Department of National Defence (DND) for military applications since 1984. Effort has been directed at developing High-Frequency Surface-Wave Radar (HFSWR) technology for ocean surveillance of ships and aircraft. However, the surface-wave technology cannot be readily applied to the problem of long-range surveillance of aircraft over land due to very high surface-wave attenuation over ground terrain. Thus, this memorandum briefly examines a related long-range HF radar technology referred to as HF sky-wave radar, or more commonly, Over-The-Horizon Radar (OTHR). A basic description of OTHR technology and performance is provided, including coverage area and target localization capability. Mention is made of problems facing OTHR deployment in Canada, the most serious of which is spread-Doppler radar clutter caused by ionospheric irregularities undergoing convection in the earth’s auroral zone. Previous OTHR efforts in other countries are examined, and are used to provide the basis for the way ahead in exploring OTHR applications in Canada.

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Keywords
HIGH FREQUENCY;RADAR;SKY WAVE;SURFACE WAVE;SURVEILLANCE;PROPAGATION;CLUTTER;HFSWR (High Frequency Surface Wave Radar)
Report Number
DRDC-OTTAWA-TM-2006-285 — Technical Memorandum
Date of publication
01 Dec 2006
Number of Pages
51
DSTKIM No
CA029044
CANDIS No
527279
Format(s):
CD ROM

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