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Post subject: Doppler radar accuracy
Posted: Sun Jun 25, 2006 9:30 am
Joined: Tue Jun 13,
2006 4:22 am
If speeds in space one day get up to a
significant fraction of the speed of light, the
relativistic Doppler radar solution becomes:
lambda)/lambda = (1+v/c)/(1-v/c) - 1,
which reduces to
~2v/c if v is very much smaller than c
and v is an 'opening velocity'.
someone please tell me the velocity accuracy of
good present day Doppler radars? I would like to
work out how fast relative velocities in space
must become before the error of the radar equals
the error of the low-speed approximation (2v/c).