An Improved Low-Cost Continuous Compaction Detection Method for the Construction of Asphalt Pavement

Figure 6

Results of vibration signal processing. (a) Waveforms of the original signal. (b) Frequency waveforms of the original signal. (c) Waveforms of the filtered signal. (d) Frequency waveforms of the filtered signal.

(a)

(b)

(c)

(d)