Logo of the Physikalisch-Technische Bundesanstalt

Metrology for digitalization

Working group 2.25


Modulation plays a major role in technical communications. It enables the optimal use of an existing communication channel, whether wired or wireless. In order to determine the quality and the characteristics of a modulated signal and thus of a communication transmission, different signal parameters are available. For the analog methods these are for example the modulation index, for the digital methods the error vector magnitude or the bit error rate. In order to enable a comparability of different measurements, a traceability chain with the corresponding measurement setups shall be implemented for these quantities. This includes investigations of the measurement uncertainty for the calibration of digital signal parameters and the participation in standardization committees for the measurement of digital signal parameters.

To top


To top