Method for quantitatively evaluating performance of observation system

The invention relates to the technical field of three-dimensional seismic exploration, and particularly provides a method for quantitatively evaluating the performance of an observation system, and the method comprises the steps: S1, determining a target region of a three-dimensional seismic observation system, and uniformly dividing the target region of the observation system into a plurality of surface elements according to the required size; s2, according to the surface elements, respectively calculating an integral shot point contribution coefficient, a coverage frequency distribution coefficient, a shot-geophone offset contribution coefficient, an azimuth angle contribution coefficient and a concentration degree distribution coefficient in the target area; and S3, according to the integral shot point contribution coefficient, the coverage frequency distribution coefficient, the shot-geophone distance distribution coefficient, the azimuth angle contribution coefficient and the concentration degree distrib