when I read "1m-accurate indoor GPS", my first gut reaction was along the lines of "so what? Nowadays outdoor differential/rover GPS/GNSS has <2cm precision with RTK+dual band receivers, even for civil use… and indoor allows for yet way better parameter control than outdoors, so it should be possible to achieve at least that precision" (besides, it would allow for robots to get a sufficiently precise location for indoor navigation and to shelve wares)
The thing is: that would require additional hardware though, whereas the relevant limiting criterion of the project presented in the article is obviously that it has to run with just the hardware provided by common mobile phones. Which is what makes the project interesting despite the comparatively lower precision.
The thing is: that would require additional hardware though, whereas the relevant limiting criterion of the project presented in the article is obviously that it has to run with just the hardware provided by common mobile phones. Which is what makes the project interesting despite the comparatively lower precision.