Type 381 Radar


Type 381 Radar

Infobox Radar
name = Type 381



caption = Type 381 radar deployed on "Luhai"-class DDG. Photo taken at IMDEX 2003.
country = People's Republic of China
introdate = unknown
number = unknown
type = 3D Air Search
frequency = C band
range = 100 km (60 mi)
altitude = 8000 m
diameter = unknown
azimuth = unknown
elevation = unknown
precision = unknown
power = 150 kW
other names = Sea Eagle, RICE SHIELD, RICE SCREEN

The Type 381 was one of the first Chinese naval 3D search radar employing FRESCAN (Frequency Scanning) technique developed by the Nanjing Marine Radar Research Institute / No. 724 Institute. Initial versions were deployed on Jiangdong class FFG and Luda command variant class to provide long range surface search.

The original version (Sea Eagle C) won the 1987 First Prize of the National Science and Technology Progression. A enhanced variant (Sea Eagle C-B) with dual band back to back canted antenna similar to the Russian 'TOP PLATE' radar have been introduced, with designation as Sea Eagle S/C. __TOC__

pecifications

* Beam: 2.7 x 1.4 deg
* Peak power: 150 kW
* Pulse width: (original, 40), (Type A, 20), compressed to 1 microsec
* PRF: (original, 370), (Type A, 730) average power of 2.2 kW
* Scan rate: 5 rpm
* Other features:
** Claimed able to track 10 targets simultaneously.
** Uses TWT+CFA coherent chain transmitter
** Reception is coherent with MTI improvement factor of 30 dBm
** Uses serpentine/waveguide

ee also

* Type 051B "Luhai"-class destroyer

External References

* [http://www.csic.com.cn China Shipbuilding Industry Corporation ]
* [http://www.china724.com.cn Nanjing Marine Radar Research Institute ]


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