Detection of low observables with a low cost navigation radar

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Authors
  1. Riseborough, E.S.
Corporate Authors
Defence R&D Canada - Ottawa, Ottawa ONT (CAN)
Abstract
Asymmetric threats are a major concern for the Canadian Forces. This threat causes the forces to consider how to defend against an attack that would most likely take place when the defensive systems are down. This is particularly the case for the navy, for example, when the ship is approaching a "friendly" harbour. Depending on where the harbour is, the ship may have its defensive sensors down. One sensor that will not have limitations placed on it for emission control, and is required to be on nearly all the time, is the navigation radar. Navigation radars are relatively inexpensive, but they have limited display and processing functions, implying that they aren't the optimum sensor for detecting fast incoming attack craft that have a low radar cross section (RCS) which are easily obscured by sea clutter. To improve navigation radar detection performance, a Furuno Radar was modified to rotate at speeds of up to 120 rpm, and a PC-based data acquisition card with a real-time tracker was interfaced to the radar. This radar was then used to collect a set of experimental radar data of an incoming Rigid Hull Inflatable Boat (RHIB) in sea clutter to determine optimal rotation rates for target detection.

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Keywords
navigation radar;detection;CFAR;RHIB;asymmetric threat;navigation radar;sensor performance
Report Number
DRDC-OTTAWA-TR-2008-267 — Technical Report
Date of publication
01 Dec 2008
Number of Pages
58
DSTKIM No
CA031829
CANDIS No
530811
Format(s):
CD ROM

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