Type 381 Radar
Encyclopedia
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.
An enhanced and upgraded version (Sea Eagle C-B) with dual band back to back canted antenna in similar fashion to the Russian 'TOP PLATE' radar have been introduced, with designation as Sea Eagle S/C(Type 382 Radar). These were installed on the Type 054A frigate
as well as the Type 051B destroyer(Type 381), Type 051C(Type 382) class DDG.
Initially, many have confused the "Sea Eagle S/C"(Type 382) installed on newer Chinese warships with the Russian 'Top Plate' (MR-760) or it's copy, but with closer examination of the photos of both radar showed detailed differences, which link it to the "Type 381 radar" rather than the 'Top Plate' (MR-760).
Radar
Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio...
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.
An enhanced and upgraded version (Sea Eagle C-B) with dual band back to back canted antenna in similar fashion to the Russian 'TOP PLATE' radar have been introduced, with designation as Sea Eagle S/C(Type 382 Radar). These were installed on the Type 054A frigate
Type 054A frigate
The Type 054A frigate is a Chinese multi-role warship that entered service with the People's Liberation Army Navy in 2007...
as well as the Type 051B destroyer(Type 381), Type 051C(Type 382) class DDG.
Initially, many have confused the "Sea Eagle S/C"(Type 382) installed on newer Chinese warships with the Russian 'Top Plate' (MR-760) or it's copy, but with closer examination of the photos of both radar showed detailed differences, which link it to the "Type 381 radar" rather than the 'Top Plate' (MR-760).
Specifications
- 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/waveguideWaveguideA waveguide is a structure which guides waves, such as electromagnetic waves or sound waves. There are different types of waveguides for each type of wave...
See also
- Type 051B Luhai-classLuhai class destroyerThe Type 051B Luhai-class is a class of destroyer built by the People's Republic of China. It consists of only one ship, No.167 Shenzhen. When Shenzhen was commissioned into the People's Liberation Army Navy in 1998, it was then, the largest surface combatant that China had ever built...
destroyerDestroyerIn naval terminology, a destroyer is a fast and maneuverable yet long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against smaller, powerful, short-range attackers. Destroyers, originally called torpedo-boat destroyers in 1892, evolved from...