Theory of nonlinear
convolution
lThe basic approach is to convolve separately,
and then add the
result, the linear IR, the second order IR, the third order IR, and so on.
lEach order IR is
convolved with the input signal raised at the corresponding power:
The problem is that the required multiple IRs are not the results of the measurements: they are instead the diagonal terms of Volterra kernels, which can be derived
from the set of
measured Impulse Responses of several distortion orders