Observation system reconstruction-based target layer seismic gun data recombination method and device

The invention discloses a target layer seismic gun data recombination method and device based on observation system reconstruction. The target layer seismic shot data recombination method based on observation system reconstruction comprises the steps that shot point coordinates are moved from an original seismic source point to the position of a virtual shot point above a target layer, and a new seismic source point is obtained; establishing a virtual detection point; and transmitting original seismic shot data to the virtual detection point, and then recombining the original seismic shot data with the new seismic source to obtain recombined seismic shot data. According to the method, the seismic gun data of the target layer reconstructed based on the observation system are recombined, so that the size of the model and the size of the original seismic data are reduced, the memory requirement of full-waveform inversion is reduced, and the calculation efficiency is improved. 本发明公开了一种基于观测系统重构的目标层地震炮数据重组方法及装置。基于观