aspcol.kernelinterpolation.reconstruct_freq

aspcol.kernelinterpolation.reconstruct_freq(krr_params, pos_output, pos_data, wave_num, kernel_func=None, kernel_args=None)

Reconstruct the function from kernel ridge regression parameters

Parameters:

  • krr_params (ndarray of shape (num_freq, num_pos_data)) – the kernel ridge regression parameters, referred to with “a” in many papers

  • pos_output (ndarray of shape (num_pos_output, 3)) – positions where the function is to be estimated

  • pos_data (ndarray of shape (num_pos_data, 3)) – positions where the function has been measured

  • wave_num (ndarray of shape (num_freq,)) – the wave number for the sound field, defined as 2*pi*freq/c

  • kernel_func (callable) – with calling signature kernel_func(pos1, pos2, wave_num, *kernel_args) should return ndarray (…, num_pos1, num_pos2)

  • kernel_args (list) – extra arguments that are needed for the kernel function

Returns:

the estimated function at pos_output

Return type:

ndarray of shape (num_freq, num_pos_output)