Wideband object identification with rectangular wave chirp excitation

Using of chirp-type excitations for the fast broadband measurement and estimation of the complex bioimpedance is discussed in this paper. The proposed method includes cross-correlation of the excitation (reference) and response signals with a subsequent Fourier analysis of the obtained correlation function. It is shown that the phase response can be especially convenient for estimating of the state of a biological object and for monitoring the processes taking place in it. The results of this study stand for elaborating the respective off-chip and on-chip measurement devices with rectangular wave chirp pulses as excitation.