Calculation of System and Correlation Functions for WSSUS Channels from Wideband Measurements

System and correlation functions of WSSUS channels are commonly accepted means for channel description in mobile communications. After a brief recapitulation of the theory for WSSUS channels, methods are derived for using system and correlation functions for the examination of measured channel characteristics. The derived methods additionally lead to a simple interpretation of the relations between the functions. Finally results are given for the Time-Variant Impulse Response, the Scattering Function and the Time-Frequency Correlation Function calculated from measured data in an indoor environment