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The HFSWR system provides enforcement agencies with real-time surveillance of 200 nautical miles of a country's Exclusive Economic Zone, helping fend off illegal offshore activities like smuggling and unregulated fishing, according to Maerospace.
"HFSWR could work 24 hours in all weathers, which would be much cheaper than operating early warning aircraft," Shi said, the South China Morning Post reported.
Radio, which works on HF band, can be received by an HFSWR receiver.
Greg Bannister, HFSWR project manager for Defence Research and Development Canada, said that data collected from the radar systems feeds into a command-and-control system located at the Canadian Department of National Defence's maritime operations center in Halifax.
Unlike traditional radar, which has a limited range and reduced performance in heavy weather, the next generation HFSWR provides persistent, active surveillance of ship traffic within the 200 nautical mile exclusive economic zone (EEZ).
Thus a signal bandwidth of several tens of kilohertz is common in typical HFSWR system which corresponds to a range bin of several kilometers.
"It is clearly our expectation and our hope this (contract) will reintroduce HFSWR into Canada and will, in fact, put it to good use to protect the approaches in both the east and the west," Brian Smith, vice president and general manager of Raytheon Canada Ltd, said earlier this year.
The results have important implications in the application of increasing bistatic HFSWR for ocean remote sensing and will possibly improve corresponding performance.
The HFSWR transmits high frequency waves that follow the curvature of the Earth to detect and track targets hundreds of kilometres beyond the horizon.
High-frequency surface-wave radar (HFSWR) technology developed by Lockheed Martin Sanders also may play a role in ship defense again, if funding permits.
Ponsford, "Surveillance of the 200 nautical mile Exclusive Economic Zone (EEZ) using High Frequency Surface Wave Radar (HFSWR)," Canadian Journal of Remote Sensing, vol.
HFSWR, taking advantage of the sea-surface diffraction character of vertical polarized wave, has won great success in over-the-horizon sea target detection  and sea states remote sensing .
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