TR Sensors and Detector Programs

Bogeyman 

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A 1280×1024-15µm CTIA ROIC for SWIR FPAs
One of the first publications published in ASELSAN's CATS FLIR projects. Year 2015

Note: Hold on, folks, the bombardment has just begun!

An informative article about T2SL MWIR detectors

View attachment 18258
I shared an article on the subject here.
 

what

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What exactly was the bottleneck in the production of CATS?
 

Nutuk

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TÜBİTAK, Düşük Radar Kesit Alanına Sahip Hava Hedeflerini Tespit Edecek Radar Geliştiriyor​



Milli Elektronik Harp ve Elektronik Destek Podu Projesinde Sona Yaklaşılıyor​

 

TheInsider

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Tubitak radar is an advanced x-band illumination radar for air defense systems.


I shared an article on the subject here.
This is probably a QWIP SWIR sensor. Aselsan has been producing QWIP SWIR sensors for a long time. 1440x576 QWIP SWIR sensor is the IR sensor of Aselflir-300T.
 

Anmdt

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TÜBİTAK, Düşük Radar Kesit Alanına Sahip Hava Hedeflerini Tespit Edecek Radar Geliştiriyor​



Milli Elektronik Harp ve Elektronik Destek Podu Projesinde Sona Yaklaşılıyor​

That could be an MIMO radar, in Aselsan's presentation it was seen on the on the road-map of naval products.
Initially would be a radar like PYAS, spatially distributed receivers and unlike PYAS with a single/multiple transmitters. Later each radar will have T/R modules of it's own and will be capable to process cross signals.
 

Anmdt

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It is an FMCW radar, not MIMO.

x-band range and more like MMW radar
FCMW is base tech for MIMO as well. So i just gave my shot.
And because MIMO radars are theoretically known for a better spatial resolution which overcomes RCS management which is done for several angles.
 

Nutuk

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MIMO = Multiple Input Multiple output

In MIMO structure you have multiple radars (take for example 4 radars) spread in an area. All 4 radars location is known by the other radars and all of them transmit in a different frequency (so each radar signature is different) and all of these radars can receive these 4 different frequencies and calculate in their software what the distance and speed of the detected target that is flying over this area.

Even if the target is stealth and bounces the radar signal into a different direction the other radars can pick up the signal of the first radar. Due to MIMO technique the stealth feature of a "diamond" like shaped stealth object to bounce the radar signal to a different direction to avoid detection is compromised and stealth aircraft is no longer "stealth".

downside of this technique is that the target has to fly over the area with these MIMO radars so the cross detection can work. It works a bit like triangulation.

FMCW stands for Frequency Modulated Continuous Wave radar and is more like the MMW radar you'd see on helicopters, range is not so superb but has high resolution
 

Anmdt

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MIMO = Multiple Input Multiple output

In MIMO structure you have multiple radars (take for example 4 radars) spread in an area. All 4 radars location is known by the other radars and all of them transmit in a different frequency (so each radar signature is different) and all of these radars can receive these 4 different frequencies and calculate in their software what the distance and speed of the detected target that is flying over this area.

Even if the target is stealth and bounces the radar signal into a different direction the other radars can pick up the signal of the first radar. Due to MIMO technique the stealth feature of a "diamond" like shaped stealth object to bounce the radar signal to a different direction to avoid detection is compromised and stealth aircraft is no longer "stealth".

downside of this technique is that the target has to fly over the area with these MIMO radars so the cross detection can work. It works a bit like triangulation.

FMCW stands for Frequency Modulated Continuous Wave radar and is more like the MMW radar you'd see on helicopters, range is not so superb but has high resolution
I know what mimo radar is, and thanks for the explanations.

FCMW has been developed in 2000s and in use since 2010 in 2 marine radars i know, so it is not something relatively new for Tübitak or Aselsan thus i didn't assume they would keep it secret unless it was something new. But M5 is telling otherwise, they i might be wrong. MIMO won't be ready soon as the Gözcü radar they have claimed soon to be tested.

Also about MIMO:

MIMO radars use modulation as well, each transmitter modulates a unique arbitrary waveform just the way it is done in FCMW, so that the receivers can distinguish the source transmitter and later process the data to merge into a single image.

MIMO radars come in two different configuration, mono-static and multi-static, and the target doesn't actually need to pass from the domain, a full radar image (360 degrees) can be created only when it is passing through the domain as you have explained, unless otherwise, it still improves spatial resolution because it may catch scatters from different angles. I don't know much information regarding to the mono-static MIMO radars but it is relatively new subject as well and told to improve spatial resolution which i think matters for detection of stealth aircrafts.

I don't know a lot about radars but using my knowledge on bi-static and multi-static sonars,i am trying to interpret as much as i can. In sonars the target doesn't have to pass through the domain yet bi-static or multi-static sonars still detects threat in greater ranges than SISO, and can create a better estimation of the target's shape, main dimensions.

I have re-read the M5 and found out some parts of the radar was already manufactured, so it is something to be tested soon, MIMO will be done beyond 2023.

Further edit:
Just figured out FMCW modulates the signal in a single pulse, while modern AESA radars (or rather any radar with digital modulation) are able to change frequency at each pulse. The latter also have similar LPI capabilities of a FMCW based LPI radar.
 
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TheInsider

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This radar uses continuous wave. Continues wave radars are mainly used for target illumination. Pulse radars are used for target detection. You don't want to continuously send RF signals to the target even if you modulate them unless you want to illuminate the target. IMHO this radar might be related to SIPER project. IT will be tested soon and the schedule of development and testing overlaps the SIPER schedule.
 
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Anmdt

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This radar uses continuous wave. Continues wave radars are mainly used for target illumination. Pulse radars are used for target detection. You don't want to continuously send RF signals to the target even if you modulate them unless you want to illuminate the target. IMHO this radar might be related to SIPER project. IT will be tested soon and the schedule of development and testing overlaps the SIPER schedule.
Which is called LPI, most AESA radars with digital beamforming (including EIRS, CAFRAD, MAR, MAR-D) capable of that.
Most AESA radars can also operate in Pulse/CW mode with slight modifications.
 
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Anmdt

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  • SDRAD: Küçük radar kesit alanına sahip, insansız hava aracı gibi hedeflerin tespitine yönelik geliştirilen eş-evreli, katı hâl teknolojisine sahip darbe Doppler radar sistemidir.
Could be this radar as well, nothing was heard about since it was mentioned in 2016-2017, however it was not mentioned to be FMCW.
 

TheInsider

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Which is called LPI, most AESA radars with digital beamforming (including EIRS, CAFRAD, MAR, MAR-D) capable of that.
Most AESA radars can also operate in Pulse/CW mode with slight modifications.
IT is called multi-function radar. Most of the time like %99 those radars operate in LPI pulse mode. Illumination is a very risky business in EW unless you know what you are doing. Most of the time stealth aircraft fly in complete RF silence( fighters like F-35 fly in listening/passive mode).
 

Combat-Master

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Aselsan Dragon Eye E/O
1344e115-92f3-4861-c876-7469b87037d0.png
 

Yasar_TR

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Isn’t it a weird coincidence that we are producing radars that can identify crafts/objects in the air that have small RCA values, after we have received and tried the S400 system? These objects being Su57, F35, F22, J20, Okhotnik etc.
 

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Anmdt

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TÜBİTAK, Düşük Radar Kesit Alanına Sahip Hava Hedeflerini Tespit Edecek Radar Geliştiriyor​



Milli Elektronik Harp ve Elektronik Destek Podu Projesinde Sona Yaklaşılıyor​


Source is page 75.
 

Philip the Arab

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Sounds a lot like KUŞRAD.... Birds have low RCS, so maybe someone decided to scale it up...


For low RCS detection, Aselsan also had artillery detection radar, for that low RCS capability is must as shells have low RCS... and ÇAFRAD & EIRS, they would detect F-35 type targets probably around 50-100km if they can detect normal RCS targets around 400 km....
LO is far more complex than just RCS, what makes the F-35 isn't VLO alone but its sensors, and weapon systems. You can detect it, but can you destroy it before it destroys you?
 
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