Patent Number:
6,310,573
Title:
Velocity calculation
Abstract:
Method and device for calculating a velocity of a moving transmitter using Rayleigh-fading of a received radio signal are presented. The method includes the step of making at least two parallel calculations of at least two respective values using the received radio signal. The at least two respective values resulting from the calculations are then used as the basis for making a decision. The decision results in an optimal value for calculating the velocity of the moving transmitter being chosen from among the at least two respective values. Each of the at least two parallel calculations is carried out by respective devices each having at least one filter and at least one level crossing counter.
Inventors:
Samuelsson; Arne (Molndal, SE)
Assignee:
Telefonaktiebolaget LM Ericsson (publ)
International Classification:
G01S 11/06 (20060101); G01S 11/00 (20060101); G01S 013/58 ()
Expiration Date:
10/30/2018