Mountain underground explosion absolute positioning method based on relative position and minimum burial depth

Abstract

The invention provides a mountain underground explosion absolute positioning method based on a relative position and a minimum burial depth. The method mainly solves the problem that it is difficult to accurately position the mountain underground explosion absolute position through seismic observation or satellite remote sensing observation. According to the method, firstly, the relative position and the minimum burial depth of an underground explosion event are obtained by means of seismic observation, and the seismic relative position serves as the constraint relation between the horizontal distance and the orientation; dEM data and gradient data are extracted by using a remote sensing stereo image pair; then, according to the minimum burial depth calculated by seismological observation, combining the digital elevation data and the slope data, defining and calculating an equivalent safety elevation which should be met by an explosion event; and finally, searching positions meeting relative positioning constraints and equivalent safety elevation constraints by using terrain, and traversing all DEM data to obtain an event absolute position set.

Description

technical field [0001] The invention belongs to the intersection field of geophysics and satellite remote sensing, and in particular relates to an absolute positioning method for mountainous underground explosions based on relative positions and minimum buried depths. Background technique [0002] In mountainous underground explosion positioning, relatively accurate absolute position positioning is of great significance for grasping and tracking the target's activity range. The location of underground explosions in mountains is realized by detecting various effect signals generated by them. The detection methods mainly include seismic monitoring, remote sensing, etc. For mountainous underground explosions, blasting and other events, because seismic signals are the main effect signals that can be effectively detected in remote areas, seismic monitoring is the corresponding main observation technology, which can better reflect the occurrence location of underground targets. ...

AI Technical Summary

Problems solved by technology

[0005] The invention provides an absolute positioning method for mountainous underground explosions based on relative position and minimum buried depth, which solves the problem that it is difficult to accurately locate the absolute position of mountainous underground explosions through seismic observation or satellite remote sensing observation

This method makes full use of the relative positioning of seismic observation and the calculation results of the minimum buried depth, and uses satellite remote sensing to solve the problem that seismic observation is difficult to give absolute position positioning, which is of great significance for the absolute position positioning of underground explosions in mountainous areas

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