The invention discloses an artificial fish reef pile distribution characteristic analysis method based on echo detection, belonging to the technical field of ocean monitoring. The artificial fish reef pile distribution characteristic analysis method comprises the following steps of : acquiring artificial fish reef pile echo detection data in a sea area to be detected, converting the artificial fish reef pile echo detection data into a two-dimensional matrix form, and drawing an echogram; Filtering noise data points which do not belong to the water depth range of the sea area to be measured; Binarizing the backscattering intensity data after filtering the noise data points to obtain a binarized matrix; Eliminating interference signal to obtain binaryzation matrix of artificial fish reef pile; Summing the binaryzation matrixes of the artificial fish reef stack according to columns to obtain the thickness of the seabed echo layer in each pulse sound wave, and performing median filtering; Setting threshold value, extracting sound wave pulse of artificial fish reef pile according to the threshold value; The longitude and latitude coordinates are utilized to draw an artificial fish reef pile distribution diagram in a sea area to be measured. The method can fully excavate echo detection data of the artificial fish reef stack, is simple to use, has extremely strong explanation and intuition, and has higher application value.
; 王清
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