In the experiment, the peak-to-peak voltage of the parabolic
pulse is about 5 V with a temporal duration of 0.5 ns. The calculated
chirp rate is about 22.85 GHz/ns. Fig. 6(a) shows the measured
temporal waveform of the generated linearly frequencychirped
microwave signal with a carrier frequency of 10 GHz,
and Fig. 6(b) shows the instantaneous frequency information
recovered from the generated linearly frequency- chirped waveform
using the Hilbert transform. As can be seen, a periodic
frequency-chirped pulse train is obtained and themeasured chirp