Search results
Results From The WOW.Com Content Network
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, and vehicle speed detection for law enforcement. [1] [2] X band is often used in modern radars. The shorter wavelengths of the X band provide higher-resolution ...
The antenna uses phase-frequency electronic scanning technology, forming sharp 3D pencil beams covering large surveillance and track volume. It uses a rotating platform with a high scan rate (30 RPM) to provide 360 degree coverage. The radar is designed with high resistance to electronic countermeasures (ECM) and anti-radiation missiles (ARM). [1]
The use of X band provides better target resolution than lower frequency bands, for example the L band, though lower frequency bands generally have better performance in detecting targets with a low radar cross section (RCS). The X band frequency and narrow beam width improve differentiation, or “range resolution,” between smaller objects ...
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.
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).
The X band frequency is higher still, so its shorter wavelength enables finer resolution of tracked objects. The radar was described by Lt. Gen Trey Obering (former director of MDA) as being able to track an object the size of a baseball over San Francisco in California from Chesapeake Bay in Virginia, approximately 2,900 miles (4,700 km) away.
AN/APS-15 H2X 10 GHz/X band bombing and navigational radar nicknamed as Mickey (equivalent to 3 GHz frequency British H2S) by Philco for Boeing B-29 Superfortress Martin PBM-3C/5/5E/5S Mariner Boeing B-17 Flying Fortress Consolidated B-24 Liberator Consolidated PB4Y-2 Privateer and Lockheed PV-1 Ventura, unlike the British H2S radar; H2X could ...
The radar system is composed of six individual line-replaceable units (LRUs). They consist of: Antenna: A mechanically scanned, slotted planar phased-array antenna with radiating horizontal slots that is 29 inches wide by 19 inches high [3] [2] Transmitter; Low-Power Radio Frequency (LPRF) unit, with four operating frequencies within the X-band [1]