[email protected] said: > I wonder if there's any advantage in combining far-away GPS with X-ray > pulsar navigation (XNAV), which is said to be good to a few kilometers, > though long integration times are needed. For example, the rough system > time from XNAV could enable very long (arbitrarily long?) coherent > integration for very faint GPS signals obtained with a gain antenna pointed > at the Earth.
Why are X-Ray pulsars better than radio pulsars for navigation? What's the adev of pulsars at long times? How long is long? Where is the knee of the curve? How good a clock could you build with a pulsar-DO? (Assume you have a good crystal but no atomic clocks.) Would you have to watch multiple pulsars at the same time? (Multiple antennas.) -- These are my opinions. I hate spam. _______________________________________________ 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.
