Describe how NDK and K-wave are experimentally validated

[charlesbmi]

Issue

Describe your proposed enhancement in detail. If you are requesting a new glossary term, please include a proposed definition.

NDK users commonly ask:

how is NDK validated?

Like many acoustic simulation software packages, stride was empircally validated against K-Wave. We should mention this in our docs. The obvious follow-up question is:

How is K-Wave experimentally validated?

Based on http://www.k-wave.org/publications.php, there are at least 4 papers comparing simulations against phantom-gel+hydrophone experimental results:

• http://dx.doi.org/10.1117/12.531178
• http://dx.doi.org/10.1109/ULTSYM.2012.0130
• http://bug.medphys.ucl.ac.uk/papers/2015-Ling-IEEEIUS.pdf
• http://bug.medphys.ucl.ac.uk/papers/2020-Martin-IEEETUFFC.pdf

Note: in these publications, they were very careful to calculate the phantom's acoustic properties. It is probably worth mentioning that these are very important to get right to have an accurate simulation in NDK.

Theoretical validation

Relatedly, K-Wave has some analytical validation we could link to: http://www.k-wave.org/forum/topic/k-wave-accuracy-verification-with-theoretical-solutions

[charlesbmi]

Additional feature request: after validating actual devices as well in water-bath. Is there a way to integrate the experimental validation data to calibrate the simulator?