This video provides a brief introduction to Crosspolarization (Crosspol) jamming as a countermeasure against radar homing missiles.
Cognitive Crosspol jamming: https://www.youtube.com/watch?v=oDukOiY283s
The intention is to promote informed scholarly discussion, and to make the professional EW community aware that this countermeasure is an option against real-world missiles for which there are few countermeasures options.
This includes current- and next-generation missiles with circularly-polarized seekers using technology that appears to be borrowed from 5G and driverless cars. Examples include Neptune, which appears to be circularly polarized, and variants from Russia, China and India.
Explanation of circular pol XP: https://www.youtube.com/watch?v=VfOyKr7R38w
As mentioned in the video, Crosspol appears to be a particularly interesting option against radar guided hypersonic missile threats, for example the Chinese DF-21.
Crosspol Overview: 1:36
Definitions 2:41
How To use Crosspol 6:10
How Crosspol Works 7:00
A Missed Explanation 10:53
Radome Effects 14:05
Crosspol and Hard Kill 17:01
Conclusion 18:23