Passive radar is a quite recent technology that uses various existing EM emissions for Radar detection. It's usually used only for ground Radars. It provides very good performances for sthealthy aircraft detection.

OFDM Radar seems also a promising technique for its various capacities (such as frequency spectrum control to eliminate interference). But OFDM signals can also carry information.

I think it would be interesting to merge both techniques to enhance aircrafts Radar detection performances. Standard aircraft Radars are monostatic, i.e. the emission antenna and the reception antenna are the same (the aircraft uses only its own Radar to locate targets). It would certainly be too complex to implement bistatic Radar on aircrafts.

But, considering the increase in embedded data processing power, it should be possible to implement bistatic Radar in aircrafts if the carrier signal could provide the location of the emission antenna (such as GPS coordinates). Each aircraft knows its own current position, and it's the same for ground antennas of course. So using OFDM information transmission capacities would help embed the emission antenna's position in its Radar signal, which could be processed by the aircraft (together with its current own position) to locate the target precisely.

Is this correct?