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The Sea-Based X-band radar (SBX-1) is a floating, self-propelled, mobile active electronically scanned array early-warning radar station designed to operate in high winds and heavy seas. It was developed as part of the United States Department of Defense Missile Defense Agency's (MDA) Ballistic Missile Defense System.
Most merchant ships carry at least one of each type to ensure adequate target detection and response. [1] For example, the S-band operates better in sea clutter and rain than the X-band, however, the X-band has greater definition and accuracy in clear weather. [1] Radar is a vital navigation component for safety at sea and near the shore.
Marine radars are used by ships for collision avoidance and navigation purposes. The frequency band of radar used on most ships is X band (9 GHz/3 cm), but S band (3 GHz/10 cm) radar is also installed on most oceangoing ships to provide better detection of ships in rough sea and heavy rain condition.
X band is used in radar applications, including continuous-wave, pulsed, single-polarization, dual-polarization, synthetic aperture radar, and phased arrays. X-band radar frequency sub-bands are used in civil, military, and government institutions for weather monitoring, air traffic control, maritime vessel traffic control, defense tracking ...
Operating in S-band, it will serve as a Volume Search Radar complementing the AN/SPY-3 X-band radar on Gerald R. Ford-class aircraft carriers, starting with USS John F. Kennedy (CVN-79). [25] It is also planned as the primary multi-function radar for Constellation-class frigates, [28] starting with lead ship USS Constellation (FFG-62).
Diagram of AN/SPY-3 vertical electronic pencil beam radar conex projections. X band functionality (8 to 12 GHz frequency range) is optimal for minimizing low-altitude propagation effects, narrow beam width for best tracking accuracy, wide frequency bandwidth for effective target discrimination, and the target illumination for SM-2 and Evolved Sea Sparrow Missiles (ESSM).
APAR is typically paired with Thales Nederland's SMART-L passive electronically scanned array radar (which operates at L band frequencies). SMART-L is a long-range Volume Search Radar (VSR) that is able to provide volume search and tracking out to 480 km. The whole system is called Anti-Air Warfare Systems (AAWS), and is based on the NATO Anti ...
This model was developed as a higher resolution X band radar for minesweepers, the successor to Oki Electric Industry's OPS-4. The development was to be carried out by Fujitsu, which was increasing its share of radar for fishing boats at that time. It is also said that British made Type 978 radar technology was introduced. [2]
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