> Tom > > Thanks that should be very useful for software simulations. > > The use I had in mind for the tool I described where for the next stage of > testing. > It can be used to test at the REAL Hardware level, using a 'perfect' GPS > signal with > no noise or with any type of desired controlled noise. > For example it is hard and time consuming to see how many ps of error > your phase detector is adding or what the phase margin or noise gain is of > the H/W PLL. > Is the power supply good enough or is it causing errors, etc > When using real GPS data, the random noise will hide the advanced > type of information you may want to take. > The other use of the Hardware simulator is for someone that wants to know how > accurate their GPSDO is but does not have access to a source accurate enough > to test their GPSDO. > > WarrenS
Read a paper like this to appreciate the complexities involved: http://tycho.usno.navy.mil/ptti/ptti2002/paper29.pdf /tvb _______________________________________________ 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.
