Naval Radar Performance under Ducting Conditions

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Authors
  1. Gauthier, S.M.
  2. Riseborough, E.S.
  3. Thomson, A.D.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
This report evaluates the detection capabilities of three naval radars against current antiship missile (ASM) threats under various ducting conditions. The parameters of three naval radars and ASMs are first defined for this study. The subject radars are the SPS-49, the Sea Giraffe and an active multifunction radar (MFR). The ASMs of concerns in this study are the Exocet, the SS-N-22, and the Novator sea skimming missiles. The defined radars are then evaluated against the ASMs under four atmospheric conditions: standard atmosphere, and with evaporation ducts at heights of 10m, 20m and 30m. This report shows that ducting conditions can have a strong impact on the detection capability of naval radar. The maximum detection range is often increased by the presence of ducts but can also be significantly decreased which puts the survivability of the ship at a higher risk. The volume search radar has the best detection capability against the missiles flying 15m and higher for any atmospheric conditions. The MFR of this report using a 3-out-of-4 binary detector has its performance seriously degraded in the presence of evaporation ducts as shown by this report.

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Keywords
Evaporation duct
Report Number
DREO-TR-2001-148 — Technical Report
Date of publication
01 Dec 2001
Number of Pages
123
DSTKIM No
CA020869
CANDIS No
517610
Format(s):
Hardcopy;Document Image stored on Optical Disk

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