Czech Passive Radar Detecting B-2 at 150 miles (2015)

Re:Czech Passive Radar Detecting B-2 at 150 miles (2015) by catalogia on Saturday March 14, 2020 @05:11PM (#22578729)

>multiple RF detection stations with synchronized clocks, to determine the difference in arrival time. The radio emissions all travel at the same speed through the air, the difference in arrival time can be used with some simple trig to figure out where the RF emitter is.

That's a fancy way to say 'triangulation'.

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Re:Czech Passive Radar Detecting B-2 at 150 miles (2015) by rmattes on Saturday March 14, 2020 @05:24PM (#22578826)

It would be triangulation if the system was measuring the arrival angles of the incoming signals. If the system relying solely on arrival time differences, it's likely doing something based on trilateration.

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Re:Czech Passive Radar Detecting B-2 at 150 miles (2015) by fest on Saturday March 14, 2020 @05:20PM (#22578802)

I believe it's technically trilateration, not triangulation.

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Re:Czech Passive Radar Detecting B-2 at 150 miles (2015) by coretx on Saturday March 14, 2020 @05:58PM (#22579045)

Contemporary passive radar arrays are phase sensitive so it ain't that simple either.

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