Short-time chirp excitation for wideband identification of dynamic objects

In this paper, some aspects of choosing excitation signals for fast measurement of complex electrical impedance of objects, including impedance of biological tissues, over a wide range of frequencies are discussed. For this purpose, several short-time excitation signals as special cases of chirp signals of near to minimal duration are proposed. The results of analysis and simulation are promising for implementing such kind of signals as the stimulating ones for fast estimation of bioimpedance parameters.