Various impulse response measurement methods are accurate for Hammerstein systems but when a linear filter precedes a static non-linearity, as in a Wiener-Hammerstein system, intermodulation distortion results in undesirable artifacts. In this paper the advantages of the wide maximum length sequence and multiple noise sequences methods are combined to create a method of measuring the diagonal Volterra series expansion of the impulse response of general nonlinear systems that may be seen as an alternative to the existing dynamic convolution method.
|Number of pages
|Journal of the Audio Engineering Society
|Published - Dec 2011
- impulse response non linear Volterra multiple wide noise sequence MLS
- non linear
- multiple wide noise sequence