On Fri, 26 Oct 2012 12:53:02 -0500, Dennis Ferguson <[email protected]> wrote:
>> Also, some antennas are better at rejecting low angle signals than others. >> While the software can reject some undesired signals, it can only do so if >> the software can identify them as separate. If the multipath signal >> destructively interferes with the desired signal, there is not much the >> software can do. > >Given that the transmitted C/A bandwidth is greater than 1 MHz, however, >I'm not sure that it is possible for multipath signals to destructively >interfere across the entire bandwidth; I think the issue is distortion, >with some frequencies in the bandwidth suffering destructive interference >while others are constructively interfered with. This can be compensated >for in software, though it is much better not to have to. > >Dennis Ferguson I thought the problem for GPS was not frequency selective fading caused by multipath but locking onto the delayed signal and generating the wrong range to the satellite. _______________________________________________ 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.
