Use of Swept Sine Wave in Physiological Systems Analysis

The use of a swept sine wave as a transient forcing function for measuring the frequency response characteristics of a physiological system is suggested. The spectral characteristics of a linear frequency swept sine wave are illuistrated and it is shown that, with relatively short sweep sine wave excitations, one can obtain almost rectangular modulus spectra with relatively good frequency selectivity. Such a transient method may be of potential use in physiological systems analysis.