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US military X-band radar

US military X-band radar (Picture 1)

The US military X-band radar is a general term for fire control, target tracking radar, and its wavelength is below 3 cm. The XBR has a 50 degree viewing angle from top to bottom and left and right, and the radar can rotate 360 ​​degrees to detect targets in all directions. XBR will be used for ballistic missile defense, testing, exercises, and training. And coordinate observations such as space debris, space shuttle and other sports. The XBR radar transmits and receives a very narrow beam. Most of the energy is concentrated in the main beam. Each beam contains a series of electromagnetic pulse signals. The XBR beam will be within 360 degrees of the ring radar. But it will not lead to the horizontal position with the horizon.

The radar band represents the range of the electromagnetic wave frequency (wavelength) emitted. Under the condition of non-phased array single radar, the high frequency (short wavelength) band is generally more accurate, but the range is short; the low frequency (long wave) band is far away. , found that the target distance is large. S-band radars are generally used as medium-range warning radars and tracking radars. X-band radars are generally used as short-range fire control radars.

The X-band radar contains many small radomes and a phased array radar antenna weighing 1814 tons (4 million lbs). The phase array radar covers 384 square meters and has more than 30,000 sets of transmit/receive (T/R) modules. These transmission and reception modules have a large grid distribution. This distribution method allows the radar to track targets at very long distances to support the guidance of the outer atmosphere target of the theater high altitude regional defense system (THAAD). This array radar needs more than one hundred. Ten thousand watts of electricity operate.

This X-band radar is derived from the radar used by the Aegis combat system and is deployed by the US Missile Defense Agency (MDA) to defend against ballistic missiles. In order to effectively correspond to short-range and smaller ballistic missiles, an important difference between this radar and the Aegis system is the use of high-resolution X-band radar. The Aegis system uses S-band radar, and the Patriot missile system uses C-band radar. This platform is designed and manufactured by Raytheon's Defense Systems Division for Boeing. Boeing is the main contractor of the Missile Defense Agency. This platform is part of the Missile Defense's land-based Midway Defense System (GMD). As a seabed, this platform can be moved to areas where missile defense needs to be strengthened. Because of the curvature of the Earth, fixed radar can cover a range of Very limited.

A total of 9 high-resolution pictures:
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