Cool…
This one goes out to all the small government, privacy loving, Republicans out there, supposedly hating invasive big brother tactics and representing the values of the American heartland.
Would be much appreciated if you could have a word with your people about this.
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This is plainly false.
The error stack-up from the imprecision of a phone’s MEMS sensors would make positioning basically impossible after a couple of dozen feet, let alone after hours of walking around.
There are experimental inertial navigation systems that can do what you describe, but they use ultra sensitive magnetometers to detect tiny changes in the behavior of laser suspended ultra cold gas clouds that are only a few hundred atoms large. That is not inside your phone.
You seem to know a lot about this. I’m just generally fascinated by this method of tracking. Would the sensors ever become accurate enough in the future? Or is there a limit to their accuracy due to physics with a small sensor?
It will always be a matter of “for how long?”. Location from integrated acceleration is what we call a stiff problem. Meaning that any error is compounded as you continue to integrate (slight over simplification, but good enough for the point). There will never be a sensor that has zero error, so it’s just a question of how much integration you can do before the errors make the results unusable.
Unless your device is already compromised, that information isnt being logged when the device is powered off so it’s kind of moot.
“powered off”
Unless I’m holding the battery in one hand and the phone in the other I don’t trust it being turned off either.
The reason it being turned off matters is because LE has a significantly more difficult time extracting data from that state. And again, a proper faraday bag prevents signal leak.
You guys are welcome to do what you want, I’m just explaining the best way to stay safe if you don’t want to leave your phone at home. There are plenty of legitimate reasons someone may want one as a lifeline just in case.
when a large, trump supporter corporation, with its main business being habit and environment tracking based personalized advertising, has so deep access to your phone as it literally builfs the operating system for it, maybe it is indeed already compromised.