Backscattering from randomly placed Dirichlet particles

Summary:

A simulated data set of backscattered waves, governed by the 2D wave equation, from randomly placed Dirichlet particles. The particles are circular with 0.2 < radius  < 2.0 and 1% < volume fraction < 20%. The incident wave is of the form e^{i k (x - x_R -  t)}  where the particles are placed in the halfspace x>0 and the backscattering is emitted and received at (x_R, 0) with x_R = -10.0. The data named bunny and bunnytest is for incident waves with 0 < k < 1 (where the term e^{- i k t} factors out). The data named train and test is for incident waves of the form e^{0.1(x - xR - t)^2}, with  9.5 < t < 98.       

Format:

An example of how to use the data is given  in [4]. To load the data requires the packages [1] and [2] in the language Julia v0.5> [3]. When using load(filename) the data will automatically be loaded as an array of type FrequencySimulation or of type TimeSimulation. 

[1] https://github.com/jondea/MultipleScattering.jl

[2] https://github.com/JuliaIO/JLD.jl 

[3] https://julialang.org/

[4] https://github.com/gowerrobert/MultipleScatteringLearnMoments/tree/master/examples