Dear Sir,

I was running example_IVP_3D_simulation.m code with :

% create the computational grid

Nx = 64; % number of grid points in the x direction

Ny = 64; % number of grid points in the y direction

Nz = 64; % number of grid points in the z direction

dx = 0.1e-3; % grid point spacing in the x direction [m]

dy = 0.1e-3; % grid point spacing in the y direction [m]

dz = 0.1e-3; % grid point spacing in the z direction [m]

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Running k-Wave simulation...

start time: 03-Feb-2016 12:20:30

reference sound speed: 1800m/s

dt: 16.6667ns, t_end: 7.3833us, time steps: 444

input grid size: 64 by 64 by 64 grid points (6.4 by 6.4 by 6.4mm)

maximum supported frequency: 7.5MHz

Here maximum supported frequency is 7.5MHz while the sampling frequency is ~ 60 MHz.

I wish to know what is the meaning for maximum supported frequency?

Does this mean that we need to filter out all the frequencies > 7.5MHz from the simulated photoacoustic signal?

Thank you.

--

Regards

Prabodh