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Recent content by Sergey_Marvelmind

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    GPS Signal and indoor outdoor flying

    Cell phones used not only "direct GPS" but A-GPS signal based on signal form near "radio towers" and WiFi signal of course.
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    Follow me mode Indoors

    Hi, If you need to "simulate" GPS signal you can use Indoor navigation ultrasonic system. It is not advertising - just contact me directly, I will send you all info what you want.
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    Indoor piloting

    Hi, There are special systems for navigating indoors, UWB (precise ±30cm, very expensive), ibeacons (precise ±50cm, cheap) ultrasonic (precise ±2cm, cheap) I have detailed information only about ultrasonic navigations. Ultrasonic system has some limitations (unobstructed sight by a mobile...
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