The invention relates to a method of estimating the speed (v) of a mobile
station connected by a radio transmission channel to a remote station,
said method including the following successive steps: receiving and
filtering a transmission signal (s) to obtain a measuring signal
reflecting time variations of said transmission channel, determining a
correlation function (R(.tau.)) of said measuring signal parametered by
the mobile station speed (v), seeking the value (R''(0)) of the second
derivation of said correlation function at the origin, estimating the
first derivative (.alpha..sub.0) of the measuring signal and calculating
the variance (C) of the estimate, and identifying the results obtained
during the preceding two steps (R''(0)=C).