An throttle valve is controlled by using an electric actuator. The system comprises a communication module, a decoding engine and a re-encoding engine. The display is coupled to an output for identifying a velocity value of the motor vehicle. The method results in improved accuracy because the noise contribution in quasi-analytical methods can be better approximated for signals having a small crest factor range, and drastically reduces the number of experiments, measurements or simulations which are needed to obtain an accurate BER estimation, as compared to standard Monte Carlo techniques.