Velocity calculation
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorArne Samuelsson
Life of this patent
Estimating the term…
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.
Claims12
A device for calculating a velocity of a moving transmitter using Rayleigh-fading of a received radio signal, the device comprising:
- at least first means including at least one filter and at least one level crossing counter for calculating at least a first value using the received radio signal;
- at least second means including at least one filter and at least one level crossing counter for calculating at least a second value using the received radio signal;
- and
- a common decision device coupled to the at least first and at least second means;
- wherein the common decision device is arranged to choose an optimal value for calculating the velocity of the moving transmitter from among the at least first value and the at least second value.
A method for calculating a velocity of a moving transmitter using Rayleigh-fading of a received radio signal, the method comprising the steps of:
- making at least two parallel calculations of at least two respective values using the received radio signal;
- using the at least two respective values resulting from the parallel calculations as the basis for making a decision;
- and
- choosing an optimal value for calculating the velocity of the moving transmitter from among the at least two respective values;
- wherein each of the at least two parallel calculations is carried out by respective means each having at least one filter and at least one level crossing counter.
Dependencies are inferred from the claim text.