The Type 518 radar is a Chinese high-performance

L band The L band is the Institute of Electrical and Electronics Engineers (IEEE) designation for the range of frequencies in the radio spectrum from 1 to 2 gigahertz (GHz). This is at the top end of the ultra high frequency (UHF) band, at the lower en ...

long-range shipboard

air surveillance radar The atmosphere of Earth is the layer of gases, known collectively as air, retained by Earth's gravity that surrounds the planet and forms its planetary atmosphere. The atmosphere of Earth protects life on Earth by creating pressure allowing for ...

. The Type 518 radar may be installed on destroyers or heavy tonnage naval vessels to detect long-range high-altitude aircraft in adverse natural noise and active electronic jamming environments. The Type 518 has been installed and deployed on the Luhu-class destroyer and the

Type 052D destroyer The Type 052D destroyer (NATO/ OSD Luyang III-class destroyer) is a class of guided-missile destroyers in the Chinese People's Liberation Army Navy. The Type 052D is a larger variant of the Type 052C; the Type 052D uses a canister-type, instead ...

. It is manufactured and exported by the

Nanjing Changjiang Machinery Group Co Ltd Nanjing (; , Mandarin pronunciation: ), alternately romanized as Nanking, is the capital of Jiangsu province of the People's Republic of China. It is a sub-provincial city, a megacity, and the second largest city in the East China region. T ...

(南京长江机器集团电子装备有限公司).

Specifications

* L - band * Wide frequency band, pulse-to-pulse frequency jump * 4 phase code

pulse compression Pulse compression is a signal processing technique commonly used by radar, sonar and echography to increase the range resolution as well as the signal to noise ratio. This is achieved by modulating the transmitted pulse and then correlating th ...

technology * Low

sidelobe In antenna engineering, sidelobes are the lobes (local maxima) of the far field radiation pattern of an antenna or other radiation source, that are not the ''main lobe''. The radiation pattern of most antennas shows a pattern of "''lobes''" ...

super

cosecant squared antenna A cosecant squared antenna, sometimes known as a constant height pattern, is a modified form of parabolic reflector used in some radar systems. It is shaped to send more radio energy in certain directions in order to smooth out the reception patte ...

Counter electronic countermeasure Electronic counter-countermeasures (ECCM) is a part of electronic warfare which includes a variety of practices which attempt to reduce or eliminate the effect of electronic countermeasures (ECM) on electronic sensors aboard vehicles, ships and ...

and

noise suppression Active noise control (ANC), also known as noise cancellation (NC), or active noise reduction (ANR), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. The concept was first develop ...

capability * Adaptive MTI filters for noise map and speed map are provided. * Interference analysis and selected transmission technology * Other reported names: ** REL-2 (export, company) ** Hai Ying

External links

Nanjing Changjiang Machinery Group Co Ltd
{{Webarchive, url=https://web.archive.org/web/20060805163113/http://bianfu.com/index-e.htm , date=2006-08-05 Sea radars Military radars of the People's Republic of China

Specifications

See also

External links