Research Article

Bioinspired Low-Frequency Material Characterisation

Figure 2

Synthetic signals developed for experimentation and their related frequency responses: (a) linear frequency-modulated (LFM) chirp signal, (b) zero phase (ZPH) ladder chirp signal, (c) magnitude response of (a), and (d) magnitude response of (b).
927903.fig.002a
(a)
927903.fig.002b
(b)
927903.fig.002c
(c)
927903.fig.002d
(d)