Nortel Matra Cellular

Nidhour Beu Rached

Corinne Bokhomme

Jean-Louis Dorusletter

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(&#x3c4;)) of said measuring signal parametered by the mobile station speed (v), seeking the value (R&#x2033;(0)) of the second derivation of said correlation function at the origin, estimating the first derivative (&#x3b1;) of the measuring signal and calculating the variance (C) of the estimate, and identifying the results obtained during the preceding two steps (R&#x2033;(0)=C).

Growing community of inventors

Paris, France

Nidhour Beu Rached