Key points are not available for this paper at this time.
In view of the application requirements of fiber optic sensing technology in the field of strain measurement, this paper considers the DAS system to measure the strain, and takes the input voltage of PZT as the intermediate variable. It also proposes a new approach to processing the DAS signal based on space-average in frequency domain, and obtains the functional model of microstrain and DAS signal strength.
Zhang et al. (Tue,) studied this question.