Trendedness monitoring method and device for submarine cable disturbance sensing data

The invention relates to a trend monitoring method and device for submarine cable disturbance sensing data. The method comprises the following steps: acquiring disturbance sensing data of a submarine cable collected by a plurality of sensors; performing data preprocessing on the disturbance sensing data according to a preset mode to obtain target data; judging the target data by using N algorithms in a preset algorithm pool to obtain a probability set with the length of N; m sub-probability sets with the length being n are selected from a probability set with the length being N in a put-back mode, wherein the put-back mode indicates that any probability data in the probability set can be repeatedly used as probability data in the sub-probability sets; the trend monitoring result of the disturbance sensing data of the submarine cable is determined according to the M models, the trend of the disturbance data of the submarine cable can be monitored, the state of submarine equipment can be monitored in time, and