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aliyusuf said:
Switched on will increase. But if it's an AESA then much less so I believe as it is an LPI radar.
Click to expand...
Not all AESA are LPI. are you sure that KLJ-A is an LPI AESA Radar ?
Is RBE2 AA Radar of Rafale LPI or not ?
 
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Signalian said:
I have mentioned characteristics which point towards LPI Radar.
Click to expand...
If China is really making LPIRs, they are on a whole new league over most of the radar makers. Currently, USA only uses LPI radars and the radar of F-35 isn’t LPIR
 
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Signalian said:
Not all AESA are LPI. are you sure that KLJ-A is an LPI AESA Radar ?
Is RBE2 AA Radar of Rafale LPI or not ?
Click to expand...
I am a layman on the subject ... but from what I could gather from the internet ... RBE2 AA Radar of Rafale is LPI. And I assume that after almost 5 years of it's announcement, the version selected by the PAF must be that.

Signalian said:
Not all AESA are LPI
Click to expand...
Could kindly explain this?
 
. . . .
aliyusuf said:
As per your assertion, these characteristics are not standard on an AESA? If not, then can you kindly provide an example of such an AESA radar which is not LPI?
Click to expand...
My analysis is a bit different.

If AESA is an LPI and if LPI uses FMCW (Frequency Modulated Continuous Wave). But FMCW radar DSP (Digital Signal Processing) is unable to distinguish between the real radar echo signal and a jamming signal with identical modulation when it detects enemy aircraft and enemy aircraft is using jammer to jam radar (meaning the AESA or LPI is getting jammed). In such case, the jamming signal receives the radar processing gain, which allows it to penetrate LPI radar DSP and alter the detection result. This makes FMCW radar vulnerable to repeater jamming. This process is done through "Repeater jamming technique" which requires the victim radar (AESA or LPI) parameters be available in the system database through ELINT (say in peacetime). Then not only LPI gets detected but also jammed. so is still an LPI Radar or will it be an AESA and not an LPI ?
 
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StormBreaker said:
The one on indian Jaguars
Click to expand...
That project ended in failure. 6 two sitters were to be converted and it turned out that the engine that was supposed to be upgraded and support the Elta el/m 2052 AESA radar was coming at too high a price ... hence the project was cancelled. Elta El/M 2052 is an excellent AESA radar.

Signalian said:
My analysis is a bit different.

If AESA is an LPI and if LPI uses FMCW (Frequency Modulated Continuous Wave). But FMCW radar DSP (Digital Signal Processing) is unable to distinguish between the real radar echo signal and a jamming signal with identical modulation when it detects enemy aircraft and enemy aircraft is using jammer to jam radar (meaning the AESA or LPI is getting jammed). In such case, the jamming signal receives the radar processing gain, which allows it to penetrate LPI radar DSP and alter the detection result. This makes FMCW radar vulnerable to repeater jamming. This process is done through "Repeater jamming technique" which requires the victim radar (AESA or LPI) parameters be available in the system database through ELINT (say in peacetime). Then not only LPI gets detected but also jammed. so is still an LPI Radar or will it be an AESA and not an LPI ?
Click to expand...
From what you are saying ... if I could understand correctly ... is that you presented a scenario where AESA/LPI gets defeated and is jammed. That may happen I guess. From what I understand LPI means difficult to jam but may not be impossible to jam.
 
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aliyusuf said:
That project ended in failure. 6 two sitters were to be converted and it turned out that the engine that was supposed to be upgraded and support the Elta el/m 2052 AESA radar was coming at too high a price ... hence the project was cancelled. Elta El/M 2052 is an excellent AESA radar.
Click to expand...
No I think they have recently upgraded some units.
@Water Car Engineer @KapitaanAli @Zapper
 
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aliyusuf said:
From what you are saying ... if I could understand correctly ... is that you presented a scenario where AESA/LPI gets defeated and is jammed. That may happen I guess. From what I understand LPI means difficult to jam but may not be impossible to jam.
Click to expand...
Yes. But tell me can PESA be an LPI radar too ?
 
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