3D Anisotropic Finite-Difference Seismic Wave Simulation

This program is designed to implement 3D anisotropic finite-difference seismic wave simulation using MATLAB. The core algorithm employs staggered-grid finite-difference methods to solve the anisotropic elastic wave equation, efficiently handling wave propagation in complex media. Key implementation features include velocity-stress formulation with perfectly matched layer (PML) boundary conditions for accurate wavefield simulation. The code architecture allows users to customize various parameters including wave velocity, anisotropy tensors, and propagation directions to achieve precise simulation results. The program incorporates optimized memory management for large 3D datasets and parallel processing capabilities for enhanced computational efficiency. Output options include comprehensive wavefield data such as amplitude spectra, frequency content, and waveform visualizations, facilitated through MATLAB's built-in visualization tools. Additional functionality includes snapshot generation and time-history recording for detailed analysis of wave propagation characteristics, helping researchers better understand seismic physical mechanisms and validate theoretical models against simulated data.