[time-nuts] GPS M code (was: Sinlge ADC multi-band receiver)
attila at kinali.ch
Tue Apr 11 11:21:12 EDT 2017
On Mon, 10 Apr 2017 16:49:24 -0700
jimlux <jimlux at earthlink.net> wrote:
> The M-code is described in a fair amount of detail here:
Not really. All it says that it's a BOC(10,5) signal using some
code that allows direct aquisition. It doesn't even mention what
the rate of the data on the new signal is. From  one can see
that the modulation is a BOC_sin (and not a BOC_cos). And that
is all I could find out about the M code so far.
Unfortunately, all the other papers concerning the M code are
behind the ION paywal, to which I do not have access.
But guessing what else I have seen on the M code, I do not think
they contain much technical detail on the spreading code itself
or the data transmitted or the encryption.
 "Design and Performance of Code Tracking for the GPS M Code Signal"
by John Betz, 2000
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