Interpolation/extrapolation of frequency domain responses using the Hilbert transform

S.M. Narayana, G. Rao, R. Adve, T.K. Sarkar, V.C. Vannicola, M.C. Wicks, S.A. Scott
1996 IEEE transactions on microwave theory and techniques  
Abstruct-The Hilbert transform relates the real and the imaginary parts of the transfer function of a causal system. The objective of this paper is to illustrate how the Hilbert transform relationship can be utilized to interpolate/extrapolate measured frequency domain responses of devices. Sample numerical examples are presented to illustrate the efficacy of this method.
doi:10.1109/22.538952 fatcat:ykjn5gqcujgbpf2e4o3avnw34m