The processing method of steep regions based on data filtering algorithm
Data filtering is a very important step in multi-beam data processing,while there always exists"misjudge,delete by mistake"in the terrain abrupt change area,and results in distortion.This paper finds out the main factors affecting the accuracy of sounding points by analyzing the source of multi-beam sounding error and the data processing,then proposes a fine processing method of CUBE algorithm for the terrain abrupt change area,and summarizes the characteristics and key points of CUBE parameter set-ting.Meanwhile,multi-beam data collected in a water area of the Jinsha River is tested and verified.The results show that the effective setting of CUBE parameters can reduce the intensity of manual editing,im-prove the accuracy of data processing and the efficiency of multi-beam processing.