- Aug 12, 2016
Firstly, you don't need a digital RWR to cue others sensor. Analog RWR can also give you the direction of emitter and it can be used to direct radar. Cueing jammer is actually quite simple because jammer doesn't have very wide beamwidthi considered stealth also undetectable till i knew about digital rwr, actually when f22 was developed analogue rwr didnt had these capabilities,so it was considered invincible
Secondly, digital receiver isn't some new invention that only appear recently, ASQ-213 R7 pod on F-16 inlet station is a digital receiver with ability to geolocate emitter location. R7 version was integrated into the fleet just 1 year after F-22 was introduced, and very frequently used in red flag exercise. Yet it doesn't turn the tide into the F-16 and F-15 favor when they go against F-22 or F-35. Because even a digital RWR still have the same weakness of any normal RWR as I mentioned earlier. They can't measure range and velocity of target almost instantaneously like a radar. The way RWR measure range to a target is either very inaccurate and time consuming or doesn't work against air target or require cooperate of several platform at the sametime.
The beam width of radar is limited by the aperture area so you can't actually make your radar beam narrower than that, it already at minimum beam width in most case.so rwr + irst = crude direction ,then radar used in lower fov (focused beam) to develop weapon track
But cueing can help reduce scan time therefore you use longer dwell time at any particular beam position
That doesn't mean the tiny fighter radar gonna be particularly useful at tracking stealth aircraft though
In principle, AESA is an array of transmit and receiving antennas working together. They can transmit anything including jamming waveform as long as the frequency is within the band width limit of the radar.https://qph.fs.quoracdn.net/main-qimg-8c9c3d5072cc946cff228bac72eb6562 can anyone guide me what is "passive model of aesa radar and aesa jammer under digital rwr heading
The group of antennas can also listen to signal , because the aperture area of fighter radar is bigger than the aperture of their RWR antenna, that mean the AESA radar can be used as a narrow band but high gain RWR . That the passive mode