[time-nuts] Carrier phase tracking

[Peter Vince]

I sort of understand the idea of correlation in order to receive the 
signals from several satellites all on the same frequency, but I 
wonder if someone has a simple explanation of how the carrier phase 
can be tracked when there are several carriers all at once?  Does it 
rely on the different Doppler-shifts making them distinguishable?

	Thanks,

		Peter