Hi Attila,
> > Galileo E1 and GPS L1C are not BOC(1,1). They both use a variant > of the MBOC(6,1), CBOC(6,1,3/11) for E1 and TMBOC(6,1,4/33) for L1C. > You can view those as a weighted combination of a BOC(1,1) signal with > a BOC(6,1). This gives an additional peak at 7MHz offset, compared to > a simple BOC(1,1) and helps to improve multipath. Yes, but I suspect some receivers will implement just the BOC(1,1) for cost reasons. (Spectral peak is at 6 MHz actually, or rather 6*1.023.) > ... Although it's possible to track both > of these signals with just a BOC(1,1) decoder (and thus a narrower > bandwidth), > this will induce a slight bias into the tracking loop and thus an error > in the PVT solution. > But BOC(6,1) is orthogonal to BOC(1,1), so I'm not seeing the bias. I could be wrong, though; some of these things are subtle. If you have a reference I'd be curious to read about it. Cheers, Peter _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
