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Don't phased array antennas and similar need to be on a somewhat stable platform to be able to track a satellite? I can't imagine that would work too well in a
by voidUpdate 1y ago
Don't phased array antennas and similar need to be on a somewhat stable platform to be able to track a satellite? I can't imagine that would work too well in a mobile phone
- deleted 1y ago[deleted]
- zipy124 1y agoFor sending yes depending on what you mean as stable. For slow moving objects or fast moving objects with a steady heading (low changes in direction of the velocity, or acceleration) it isn't that much of a challenge anymore. For fighter aircraft or some of the faster drones it still presents a challenge that is expensive, but solvable with today's technology (at least from my understanding, the best of these systems are still highly classified). For receiving however, you can simply use a phased array antenna to gain directional information in addition to your magnitude. This allows you to ignore interferance that is coming from the ground (though not any from a jammer located above the device, or any reflections from the atmosphere). The effect of this is somewhat like a shotgun microphone.
- londons_explore 1y ago'stable' on the timescale of radio waves is like claiming the statue of liberty isn't on a stable platform because one day continental drift will move it about...