GPS soft baseband processing

[Uwe Klein]

On 9/7/08, Flemming Richter Mikkelsen <quatrox at gmail.com> wrote:
>  "Our automatic geotagging technology solves these
>  problems. A fragment of RAW GPS RF data is captured
>  in 0.2 seconds and then stored alongside the digital image
>  and the processing is performed later on a PC. Because
>  we separate the GPS capture from the GPS processing,
>  our technology maintains the traditional "instamatic" user
>  experience we are all used to and then pulls consumers
>  to experience a far more interesting way to search and
>  share photographs later."

Interesting.
Around 1995 I  used about the same technique to sync spectrometer
data to an external authoritative timesource ( in that case the DCF77
signal encoded into 10ms dataframes ) time recovery could achieve
better than 100us

uwe