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India is reviving the development of an indigenous Airborne Early Warning And Control System (AEWACS), which it had abandoned in 1999. “We have submitted a proposal to build an AEWACS with a next-generation active phased-array radar installed on a smaller aircraft, unlike the rotating antenna in the earlier Airborne Surveillance Platform (ASP),” said K.U. Limaye, director, Centre for Air Borne Systems (CABS). Limaye, who is also Director of the Electronics and Radar Development Establishment (LRDE) of the state-owned Defence Research & Development Organisation (DRDO), added that the airborne radar could be integrated on a Brazilian Embraer 145 aircraft.
The new AEWACS' mission avionics and sensors will be integrated via a dual MIL-STD 1533 B digital databus, with software programmes providing tactical aids, cues and alerts. The mission system will provide automatic radar control, automatic detection and track initiation, reduced false alarms, improved track continuity, sensor and databus fusion and modern communications management. It will also provide adaptive tracking performance, fast track update rate, reliable local situation display and computer-assisted decisions.
The LRDE-developed roof-mounted radar will be an active phased-array, pulse compression, Doppler radar operating in the S-band. The fixed antenna, with extremely low sidelobe levels, will comprise 200 transmitter/receiver modules mounted on top of the aircraft's fuselage. The best range performance will be achieved in a 150 degree sector sideways, with the performance reduced in forward and aft directions outside of this sector. The instrumented range will be 243nm and the typical detection range for a combat aircraft-sized contact will be 190nm. The radar's electronically scanning beam will be controlled by an automatic and intelligent energy management system which will optimise the beam position and compared to conventional, rotodome solutions, will provide quicker detection verification, increased tracking range, and improved tracking performance even for highly manoeuvring targets.
Work on the ASP's Technology Demonstrator (TD) began in earnest and the first flight of the TD, an Avro HS-748 twin-turboprop aircraft equipped with a rotodome fabricated by BAE Systems, took place in November 1991 at the ASTE's Bangalore facility. By 1994, the LRDE and state-owned Bharat Electronics Ltd (BEL) had completed development and fabrication of the ASP's radar and related electronics and a fresh round of technology evaluation and flight testing got underway, following a funding of Rs 250 million from the DRDO. By mid-1996, work on most aspects of the AWACS project had been completed, and the LRDE radar demonstrated an effective range of 300km when called upon to detect a low-flying target cruising at Mach 1.5 speed. However, the sole ASP TD perished in a fatal crash at Arrakonam near Chennai in January 1999, killing eight personnel, and the ASWAC project was consequently put on hold.
Within two months of signing the $1.1-billion Phalcon Airborne Early Warning and Control Systems contract, India is looking to revive its own $400-million AWACS project.
To be called the Mini-AWACS system, the project harkens back to the indigenous airborne surveillance platform (ASP) effort shelved by India's Defense Research and Development Organization (DRDO) in 1999 after a modified Avro HS-748 crashed, killing four scientists and four air force officers on board. The accident was blamed on a rotodome that blew off, indicating a failure in the modification process.
However, this time DRDO is expected to mount the Mini-AWACS' phased-array radar on an in-production executive jet, according to K.U. Limaye, director of the Electronics and Radar Development Establishment and head of CABS. An experimental radar is already in testing, he added.
Originally posted by Stealth Spy
The rest of the world seems to be catching up with the US in the field of AESA radar technology. Russia, Europe, Israel, India and China seem to be catching up fast.
Originally posted by intelgurl
What an EXCELLENT post!
The only comment I would like to make is that while the rest of the world is "catching up" with the US in the field of AESA technology, the US is finding ways of completing the killchain using AESA technology for not only intel gathering and information dissemination but also for engagement.
The AESA radar on the F-22 has the ability to emit High Power Microwaves as a focused direct energy weapon. So while the rest of the world make be embracing AESA technology, that does not mean that their technology is then equal to the most advanced systems the US may be researching and or fielding.
(Didn't mean to sound all nationalistic, just wanted to explain that the US companies aren't sitting on their laurels letting others catch up)
Another defense institute in Bangalore is using a microwave-producing version of Kali which the scientists use for testing the vulnerability of the electronic systems going into the LCA Tejas under development and designing electrostatic shields to protect them from microwave attack by the enemy.
BAE SYSTEMS has developed the world's first production Active Electronically Scanned Array (AESA) radar for helicopters. The Seaspray 7000E is being officially launched at the Farnborough International Air Show and is the latest in BAE SYSTEMS, family of Seaspray surveillance radars. The 7000E is also suitable for unmanned aerial vehicles (UAVs) and light maritime patrol aircraft.
Seaspray 7000E provides multi-mode performance in a much smaller volume and mass, with simplified installation and at a reduced cost, compared with equivalent mechanically scanned radar.
"The AESA technology together with the engineering implementation ensures that failures cause only graceful performance degradation, thus offering high operational availability," said Dr David Hughes, Executive Vice President, Helicopter Systems. By means of a software upgrade, the sensor can provide a wide range of extended surveillance modes, such as moving target indication and high resolution ground mapping or interface with the weapon system to provide missile target and guidance information.
Seaspray 7000E is the outcome of the on-going product development activities of the Edinburgh-based Sensor Systems Division (SSD) of BAE SYSTEMS Avionics. It comprises just two Line Replaceable Units easing installation and reducing volume and mass. The E-Processor and AESA scanner are typically at least 25% lighter than their mechanically scanned radar equivalents. Seaspray 7000E uses industry-standard interfaces to communicate with other mission sensors and avionics, and is controlled and displayed through the aircraft's Human/Machine Interface (HMI).
Seaspray 7000E's Direct Digital Synthesis generated digital pulse compression waveform supports optimised performance in all modes. The radar has been designed to function over the full spectrum of air, land and sea surveillance operational requirements. Seaspray 7000E provides small target and long range detection, target classification, using high resolution range profiling and Inverse Synthetic Aperture Radar imaging. The radar has weather and navigation modes, multiple target track-while-scan and a sensor fusion capability.
Optional modes include high resolution Synthetic Aperture Radar ground mapping, Ground Moving Target Indication, air to air, Electronic Support Measures integration offering high accuracy angle of arrival information and Identification Friend or Foe integration. Seaspray 7000E features low probability of intercept coupled with a high gain antenna with low side lobe performance.
The mission radar, the Flygburen Spaning Radar with the Swedish Air Force designation FSR 890, is based on the Erieye side looking airborne radar (SLAR) from Ericsson Microwave Systems. The Erieye SLAR is a long-range radar, fitted with fixed active phased array antennae and operating within the 2GHz to 4GHz, NATO E to F bands, (the US S band). The 9m-long, 900kg antenna unit is mounted on the upper spine of the fuselage and gives the aircraft its distinctive appearance.
The Erieye radar provides 360° coverage with optimum performance of the radar over the 150° azimuthal sectors on each side of the aircraft. The radar can detect fighter aircraft at a range of 350km in a dense hostile electronic warfare environment, in heavy radar clutter and at low target altitudes. The radar has a sea surveillance mode.
The Erieye system has full interoperability with NATO Air Defence Command Systems. The system uses solid-state electronics, open-system architecture and ruggedised commercial off-the-shelf (COTS) hardware, with general-purpose programmable workstations and full-colour liquid crystal displays.
The radar incorporates an Identification Friend or Foe and a Secondary Surveillance Radar (IFF SSR) with an electronic support measures unit operating over the NATO E to J bands from 2GHz to 18GHz.
by Piotr Butowski
Tikhomirov NIIP institute presented a small Epaulet-A active electronically scanned antenna (AESA) radar.
Unlike another AESA radar, Zhuk-A, shown by Phazotron-NIIR company in the neighboring pavilion, the Epaulet was not a mock-up, but a fully functioning experimental radar dismounted for the time of exposition from the test stand. According to NIIP representatives, the radar operates within frequency range X (centimeter wavelength). The radiation power in each of the antenna channels "amounts to 8-1OW, which may be compared to 5-8W emitted by foreign radars"; noise factor amounts to 3dB, whereas the efficiency factor is about 30%.
The Epaulet-A radar has been built almost exclusively from Russian components with use of Russian technology, which is one of the basic conditions required by Russian air forces for the equipment to be installed in the fifth-generation fighter. The Epaulet-A is an experimental radar used for developing AESA technology and it is composed of only 68 transmit-receive modules; the next radars may be equipped with aerials of any form and size. The price of a single module "will be reduced to an acceptable level, provided that the same technology is used also for other series radiolocation systems made for military and civil applications" say NIIP officials.
The MiG-35 multirole combat airplane which it is planned to offer for the Indian fighter tender, will have a radar with an active phased antenna array (AFAR).
“Right now the Fazotron-NIIR corporation is intensifying efforts on the AFAR creation for these airplanes,” a source in the defense industrial complex reported to Interfax-AVN. He noted that for participation in the tender, it is necessary to assemble and test a experimental example of an AFAR in good time. It earlier had been reported that India plans to purchase 126 fighters at a total cost of nearly 9 billion dollars for its air force.
According to the information of Indian sources, part of the fighters will be delivered in ready form, and part, it is possible, will be assembled under license at enterprises of the Indian HAL corporation. It is expected that besides the Russian MiG-29, the Swedish JAS-39C and French Mirage-2000-9 will take part in the Indian tender.
Source: 25.11.05, Avia.RU
Russian design bureau RSK MiG has upped the stakes in India’s 126-aircraft lightweight fighter contest by announcing its intention to offer a production variant of the MiG-29OVT demonstrator that debuted at last August’s Moscow air show. Dubbed the MiG-35, the new design will be offered in response to a request for proposals to be released by New Delhi late this month or in early 2006, says RSK MiG director general Alexey Fedorov.
The proposed MiG-35 variant, which supersedes an earlier RSK MiG offer to India of the MiG-29M2, would be equipped with the MiG-29OVT’s RD-33MK all-axis thrust-vectoring engines, an active phased-array radar and have an airframe life of 6,000h. “We have delivered documents to India and are optimistic about the results of this tender,” says Fedorov. The design is expected to face competition from the Boeing F/A-18E/F Super Hornet, Dassault Mirage 2000, Lockheed Martin F-16, Saab Gripen and, potentially, the Dassault Rafale and Eurofighter Typhoon to replace MiG-21s.
PATENTS GRANTED (in May 2005)
DMRL, Hyderabad :
• A Process for Preparation of Iron Aluminides.
• A Process for Preparation of Light Weight Ceramic Compounds Material for use in Bullet Proof Panel/Shelters.
• A Process for Preparation of Rubber Lining Material.
• A Process for Preparation of Titanium Matrix Composite.
• A process for the Production of Titanium Matrix Composites.
• A process for making Near Net Shaped Metal Matrix Composites.
LRDE, Bangalore :
• Transmit/Receiver Module for Active Phased Array Antenna.
New Delhi: Defence Research and Development Organization (DRDO) proposes to develop indigenous Air Borne Early Warning and Control System.
A programme for design and development of indigenous Airborne Early Warning and Control (AEW&C) System costing Rs. 1800 crore was sanctioned by Government on Oct 06, 2004.
Preliminary designs of various subsystems of the AEW&C are completed and are under review by expert committees. The Airborne Early Warning and Control System is likely to be developed by April 2011.
This information was given by the Defence Minister Shri Pranab Mukherjee in a written reply to Shri EG Sugavanam in the Parliament today.
Originally posted by Perverbial Eye In The Sky
What about Australia they have a large Phased Array Program going on too.
Australia's Ministry of Defence reports that Australia and the United States have joined forces by signing a joint agreement to further develop Australian active phased array radar technology. The total development cost is estimated to be approximately $30 million over three years.
Defence Minister Robert Hill said both countries will share the development costs, technical expertise and benefits of the CEAFAR (3D) active phased array radar. This technology is being developed by ACT electronics company CEA Technologies as part of Australia's bid to make its new Anzac-Class frigates survivable against supersonic cruise missiles, but it also has other military and civil applications on land and sea.
Senator Hill congratulated CEA Technologies and the Australian Ministry of Defence's Defence Materiel Organisation for the work done to bring about this joint project, and noted that "The program will allow further development of the CEA radar technology for possible use in medium to long range air warfare and ballistic missile defence. The technology can also be applied to smaller ships and other Australian Defence Force air surveillance assets... [and] also has potential to be used in a range of US programs including the Littoral Combat Ship and other new ship programs, land and land mobile programs, as well as replacing legacy systems on some US ships... We have a very close working relationship with the US Navy on this project, with US staff embedded in the project team."
CEC works especially well with the AEGIS radar & combat system, which will be present in Australia's new SEA 4000 Air Warfare Destroyers. Long-range intercept capabilility via advanced versions of the Standard (SM-2 Block III+) missile which Australia is already buying is also helpful, given CEC's ability to have advance ships help to track and engage threats beyond the firing ship's radar range.