On the use of the matrix-pencil method to correlate measurements at different test sites

A new method for systematic correlation of measurements in semi-anechoic an d anechoic chambers is presented. A signal measured in a semi-anechoic cham ber is first processed using the matrix-pencil method which is applied sequ entially on small frequency intervals. On each interval the measured signal is decomposed into its propagating wave components. The component correspo nding to the wave reflected from the ground is identified and removed to fu lly retrieve the signal measured in an anechoic chamber. Three examples usi ng log-periodic and Vivaldi antennas in different anechoic and semianechoic chambers for varying frequency ranges illustrate the method. The proposed decomposition algorithm can be utilized to characterize measurement test si te imperfections.