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A comment on Military drone swarms and how to combat them. Parent comment

Re:Military drone swarms and how to combat them by ge96 on Tuesday August 23, 2022 @01:24AM (#32560757)
Wonder if you could do point to point laser comms.
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Re:Military drone swarms and how to combat them by kragen on Tuesday August 23, 2022 @01:43AM (#32560848)
US military radios use FHSS spanning 225-420 MHz. I don't know details but I bet they're hard to jam or even detect.
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Re:Military drone swarms and how to combat them by bob1029 on Tuesday August 23, 2022 @02:21PM (#32568963)
DSSS/FHSS schemes are almost magical in LPI and resilience when applied aggressively in a military setting.

Operating below the noise floor shouldn't be possible at first glance, but through the power of statistics it absolutely is feasible.

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Re:Military drone swarms and how to combat them by kragen on Wednesday August 24, 2022 @12:40AM (#32575075)
Hmm, I notice you mention LPI and resilience but not LPD (low probability of detection). Is DSSS maybe easier than FHSS for an adversary to detect on a waterfall plot and localize with phase correlation if they have a phased array? Or is it also suitable for LPD?
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Re:Military drone swarms and how to combat them by RF_Savage on Wednesday August 24, 2022 @10:47AM (#32580154)
Or 36-87MHz. And plenty of others.
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