Hello,
I am curious if there is a way to allow for multiple monopole sources with varying frequencies to be mapped to the grid simultaneously.
Right now, I am attempting to define separate source masks for each source, however it still only provides the first source.
Any suggestions would be welcome!
And by the way, thanks for the toolbox!
Best,
Steve
Hi Steve,
The way to do it is to define a single binary source mask the same size as the computational grid, where the 1's indicate all the grid points that will act as source points. Assuming you are defining a pressure source, you can then assign different time series inputs for each source point to source.p (in your case, these could be sinusoids at different frequencies). The source matrix is indexed as source.p(source_point_index, time_index), where the ordering of the source points within the grid follows MATLAB's column-wise linear indexing.
If you want to define different frequency sources at the same grid point, just add the source signals together.
I hope that helps, let us know if you can't get it working!
Brad.
Thank you! I got the multiple points to work, however, I may have phrased my question wrong about the varying frequencies.
How can I define one source to hold one freq., say 500Hz, and another separate point on the other side of the plate to be driven at 2Khz?
Thanks again,
Steve
Hi Steve,
If your source.p_mask has two source points, you could define the input signals as:
source.p(1, :) = sin(2*pi*source_freq1*kgrid.t_array);
source.p(2, :) = sin(2*pi*source_freq2*kgrid.t_array);Similarly for more source points or more complicated driving signals.
Brad.
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