top | item 46360278

(no title)

alhirzel | 2 months ago

Years ago, this very subject was an interview question at a national lab (at an undergrad level). The question was roughly:

> the ends of windmill blades look a lot like a jet on radar. If you were assigned to this project, what would your approach be to avoiding false positives?

This was in 2011/2012. I find it difficult to believe the problem is not solved.

discuss

order

dmbche|2 months ago

Realistically, isn't it a known presence on radar? It's static - you can't just ignore signals from that area in space?

tjohns|2 months ago

Yes, and more...

You can use different antenna designs for a more directional radar beam. Or tilt the beam upwards to steer it around obstacles.

You can also build a moving-target detector by looking at doppler shift to filter out objects that are moving too slowly: https://en.wikipedia.org/wiki/Moving_target_indication

the_gipsy|2 months ago

The enemy could be hiding precisely at the windmills /s

wkat4242|2 months ago

Jets don't tend to fly around in little circles so there's that. And windmills don't move around a lot. I'm sure this is a solved problem.

xxen9|2 months ago

[deleted]

adleyjulian|2 months ago

It has been solved. Get rid of all the windmills. Easy.

ThePowerOfFuet|2 months ago

>It has been solved. Get rid of all the windmills. Easy.

You dropped this: /s