Ambient Noise Generator & Evaluation

Last modified 23 April 2019

1. Research Subject

The aim of this software is to generate synthetic ambient noise in physical dimension and evaluate the cross-correlation function for the structural monitoring.

2. Specifications

• Generate noise waveform using representations of ambient noise.
• Incorporating scattering, attenuation, disspersion, variety of source wavelet, Gaussian noise.
• Automatic evaluation of cross-correlation (1st & 2nd order, full wave and coda wave) and its signal to noise ratio
• Flexible source type, source locations and receiver locations
• Selectable outputs (noise waveform, cc function, beamforming analysis, Signal to noise ratio)
• Available for virtual dv/v analysis

3. Way to run the simulation

Please go through the work-flow as following:

Make model

• run source_and_receiver.m to prescribe source and receiver location
• run model_structure.m to prescribe structural information such as
  • phase velocity
  • dispersion curve
  • attenuation
• run make_config to prescribe model parameters

Run Simulation