History:
The CAPTOR radar was developed since 1990 by the EuroRadar consortium (GEC Marconi, DASA, INISEL and FIAR). Initinally the radar was called ECR-90 (European Collaborative Radar - 90). The radar is based on the Blue Vixen radar of the Sea Harrier FMK.2, but it's at all a completly new design.
The first test version ECR-90A was tested in 1993 in a BAC-111. The B-version was an improved version, after there were some problems with the original version. The ECR-90C was the first Eurofighter compatible version and was integrated into the DA5 (second german single seat prototype) which had it's maiden flight on 24th February in 1997. The production of the radar begun in 1998, the development of the series version of the radar ended in 1999. The name CAPTOR is used since the year 2000. The first production version of the CAPTOR was delivered 21th june 2001.
619 CAPTOR radars will be build.
Design:
The CAPTOR is a digital impulse doppler multi-mode radar, it consists of 61 SRIs and 6 LRIs and weights ~170 kg. The performance lies between 30kV amd 50 kV. The radar works in the X-band frequency with 8-12 Ghz. It chooses automatically between low, medium and high pulse reputation frequencies, which can lie between 1000 and 200000 impulses per second.
The CAPTOR also uses the so called Data Adaptive Scanning (DAS) technology to minimize the movement of the mechanical array.
The software is written in ADA on a MIL STD 2167A and contain a code of 1,2 million lines.
The CAPTOR uses three channels: 1st for target search, 2nd for target track and the 3rd for identification and countering of enemy ECM.
Modes:
The CAPTOR provides a wide range of different AA- and AG-modes. The following modes are available:
BVR AA-modes:
- RWS (Range While Scan)
- TWS (Track While Scan)
- VS (Velocity Search)
CAC AA-modes:
- Boresight Acquisition
- Vertical Acquisition
- Slaved Acquisition
- HUD Acquisition.
AG-modes:
- Sea
- DBS/SAR (Doppler Beam Sharpening/Synthetic Aperature Radar)
- GMTI/T (Ground Moving Target Indication/Track)
- AG-Ranging
- PVU (Precision Velocity Update)
- TA (Terrain Avoidance).
- FTT (Fixed Target Track)
The radar also provides look up/down and shoot up/down capabilities, raid assessment and a non cooporative target recognition (NCTR) function.
Also it is able to create a 3-D picture from the airspace which provides the pilot a better overview about the situation into the airspace.
Performance:
The CAPTOR radar is able to lock onto a large target (like a transporter) at distances of over 300 km and on a fighter sized target at distances above 160 km. The radar is able to track up to 20 targets at once and can engage 6 of them. All targets are track by priority and the radar can collect detailed informations about the primary tracked one. A target change will be automatically undertaken when a missile is fired at one target.
The array can be moved +-60° in azimuth and elevation.
Handling:
The radar functions can all be handled with the VTAS controls. Much functions are automatized. The array will be normally moved automatically and the radar switches automatically between the different modes.
Captor-D:
The Captor-D is the proposed modell for tranche 2 aircraft using new PowerPC processors with a new chip architecture. The D-Version features a 0,3 m resolution SAR mode and improved ECCM as well as full AG-modes which will not all be available for Captor-C in tranche 1.
The radar is designed with later AESA retrofit in mind.
AMSAR/CAESAR:
The AMSAR /Airborne Multi-Mode Solid-State Active-Array Radar) programme was started back in 1993 by the government founded GTDAR consortium with the aim to research and develope the AESA fighter radar technology. In 2003 german and british industry started the CECAR as a strand of AMSAR to develope a Captor specific AESA. The industry founded CAESAR (Captor AESA Radar) demonstrator developed by the EuroRadar consortium was fully integrated and tested on the ground before it made its first flight aboard a BAC-1-11 on 24th February 2006. The current modell is close to a production modell and will be available ~2010 as a retrofit to the Captor-D or as a new radar for Tranche 3 aircraft. The AESA antenna consists of 1500 T/R-modules with an output of 10 W each.
موضوع: طياروا التايفون السعوديين يتلقون التدريب في المملكة المتحدة 
الخميس 30 أكتوبر 2008 - 7:16
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