Kashef is a series of Iranian early warning radars developed by SAIRAN. Currently there are three versions in service, Kashef 1, Kashef 2 and Kashef 99.[1]
Kashef 1 is a 2D radar which operates in S-Band and has a range of 150km. It uses two separate receivers that gives it good ECCM capability and the ability to detect low RCS targets. It can track up to 100 targets simultaneously. One of its main advantages is its high mobility because it can be mounted on trailers and set up and break down in 30 minutes. Kashef 1 is offered for export as TM-ASR-1 (Air Surveillance Radar 1).[2]
Kashef 2 is externally very different from Kashef 1. It uses a different net-like antenna that can be split in 3 parts to reduce the time needed for setup and breakdown. The range is 200km and the maximum number of targets it can track simultaneously is increased to 1000. It uses 30kW of power. The receiver and transmitter of the radar are using solid state electronics to increase the radar's ECM resistance.[3]
Kashef 99 is a 3D phased-array radar system that is carried on a vehicle, suitable for detecting small aircraft and objects and has a range of 12km. Kashef-99 can detect 300 targets simultaneously.[4]
Radar is a system that uses radio waves to determine the distance (ranging), direction, and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain.
An active electronically scanned array (AESA) is a type of phased array antenna, which is a computer-controlled antenna array in which the beam of radio waves can be electronically steered to point in different directions without moving the antenna. In the AESA, each antenna element is connected to a small solid-state transmit/receive module (TRM) under the control of a computer, which performs the functions of a transmitter and/or receiver for the antenna. This contrasts with a passive electronically scanned array (PESA), in which all the antenna elements are connected to a single transmitter and/or receiver through phase shifters under the control of the computer. AESA's main use is in radar, and these are known as active phased array radar (APAR).
The history of radar started with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell's seminal work on electromagnetism. However, it was not until the early 20th century that systems able to use these principles were becoming widely available, and it was German inventor Christian Hülsmeyer who first used them to build a simple ship detection device intended to help avoid collisions in fog. True radar, such as the British Chain Home early warning system provided directional information to objects over short ranges, were developed over the next two decades.
The Crotale is a French, all-weather, short-range surface-to-air missile system developed to intercept airborne ranged weapons and aircraft, from cruise or anti-ship missiles to helicopters, UAVs or low-flying high-performance fighter aircraft. It was developed by Thomson CSF Matra and consists of a mobile land-based variant as well as various naval ones.
The Raytheon MIM-23 HAWK is an American medium-range surface-to-air missile. It was designed to be a much more mobile counterpart to the MIM-14 Nike Hercules, trading off range and altitude capability for a much smaller size and weight. Its low-level performance was greatly improved over Nike through the adoption of new radars and a continuous wave semi-active radar homing guidance system. It entered service with the US Army in 1959.
Over-the-horizon radar (OTH), sometimes called beyond the horizon radar (BTH), is a type of radar system with the ability to detect targets at very long ranges, typically hundreds to thousands of kilometres, beyond the radar horizon, which is the distance limit for ordinary radar. Several OTH radar systems were deployed starting in the 1950s and 1960s as part of early-warning radar systems, but airborne early warning systems have generally replaced these. OTH radars have recently been making a comeback, as the need for accurate long-range tracking has become less important since the ending of the Cold War, and less-expensive ground-based radars are once again being considered for roles such as maritime reconnaissance and drug enforcement.
Rajendra is a passive electronically scanned array radar developed by the Defence Research and Development Organisation (DRDO). It is a multifunction radar, capable of surveillance, tracking and engaging low radar cross section targets. It is a ground surveillance radar and is a great source of surveillance operating at frequency around 20 GHz. It is mainly used to track enemy's installations.
An airport surveillance radar (ASR) is a radar system used at airports to detect and display the presence and position of aircraft in the terminal area, the airspace around airports. It is the main air traffic control system for the airspace around airports. At large airports it typically controls traffic within a radius of 60 miles (96 km) of the airport below an elevation of 25,000 feet. The sophisticated systems at large airports consist of two different radar systems, the primary and secondary surveillance radar. The primary radar typically consists of a large rotating parabolic antenna dish that sweeps a vertical fan-shaped beam of microwaves around the airspace surrounding the airport. It detects the position and range of aircraft by microwaves reflected back to the antenna from the aircraft's surface. The secondary surveillance radar consists of a second rotating antenna, often mounted on the primary antenna, which interrogates the transponders of aircraft, which transmits a radio signal back containing the aircraft's identification, barometric altitude, and an emergency status code, which is displayed on the radar screen next to the return from the primary radar.
Mersad is an Iranian low- to mid-range air defense system developed in 2010. It fires Shahin (Falcon) missiles which are reverse-engineered, domestically upgraded versions of the American MIM-23 Hawk surface-to-air missiles. It uses a series of domestically produced radars and electronic devices.
Radar MASINT is a subdiscipline of measurement and signature intelligence (MASINT) and refers to intelligence gathering activities that bring together disparate elements that do not fit within the definitions of signals intelligence (SIGINT), imagery intelligence (IMINT), or human intelligence (HUMINT).
The Swathi weapon locating radar is a mobile artillery-locating, phased array radar developed by India. This counter-battery radar is designed to detect and track incoming artillery and rocket fire to determine the point of origin for counter-battery fire.
Electronics and Radar Development Establishment (LRDE) is a laboratory of the Defence Research & Development Organisation (DRDO), India. Located in C.V. Raman Nagar, Bengaluru, Karnataka, its primary function is research and development of radars and related technologies. It was founded by S. P. Chakravarti, the father of Electronics and Telecommunication engineering in India, who also founded DLRL and DRDL.
The PJT-531 Battle Field Surveillance Radar – Short Range(BFSR-SR) is a man portable 2D short-range battlefield and perimeter surveillance radar developed by the Indian Defence Research and Development Organisation (DRDO). The BFSR has been designed by DRDO's Bengaluru-based laboratory, the Electronics and Radar Development Establishment (LRDE) and is being manufactured by Bharat Electronics Limited (BEL).
The AN/MPN is a mobile Ground-controlled approach radar first used during World War II. "MPN" is Joint Electronics Type Designation System nomenclature for (Ground) Mobile (M), Pulsed (P), Navigation aid (N).
Matla-ul-fajr is an Iranian VHF 3D radar. It was first seen in military parades. It was stated that Matla-ul-fajr covered the whole Persian Gulf. The range of Matla-ul-Fajr-1 is 300 km and the max altitude is 20,000 m. When fully set up, the height of the system reaches eight meters and it uses 12 "Yagi" antennas installed in two rows. The whole system, containing the antennas, setup instruments, processing, controlling and displaying units, communication devices and power generator are all installed on a trailer to achieve a very good mobility. The radar is also equipped with ECCM to survive in an e-warfare environment.
Alim is the first Iranian passive radar. Passive radars do not transmit. Instead, they detect and track objects by processing reflections from non-cooperative sources of illumination in the environment, such as commercial broadcast and communications signals.
The TRML is a family of air defense radars first developed by Telefunken and currently produced by Hensoldt. It is a development of the earlier TRMS.
Asr is an Iranian passive electronically scanned array long-range radar unveiled in 2013. The Air Surveillance Radar or ASR is a 3-D solid state phased array radar, capable of detecting boats, low flying aircraft with a radar cross section (RCS) of 4 m2 (43 sq ft) at a range of 5–110 nmi. The radar is jointly designed and built by the Islamic Republic of Iran Navy and the Ministry of Defence and Armed Forces Logistics (Iran).
ASR-9 is an airport surveillance radar system admitted into the National Airspace System (NAS), to be utilized by the Federal Aviation Administration to monitor civilian and commercial air traffic within the United States. Developed by Westinghouse, ASR-9 was the first radar system to display air traffic, and weather conditions simultaneously. The ASR-9 is mainly intended to monitor and track aircraft below 25,000 ft and within forty to sixty nautical miles from the airport of operation. The ASR radar systems were widely used where an advanced radar system was needed, consisting of 135 different ASR-9 operating locations around the U.S. The FAA is currently working to upgrade the remaining ASR-9 radar sites to a modernized digital version known as the ASR-11.
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