How to remove delay from idtf object?

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I'd like to use the inv() function for an idtf object to generate a predistorted waveform. Right now I cannot because the inverse is noncausal due to a 13 second iodelay in the original transfer function. How can I remove the iodelay from the idtf object?

Accepted Answer

Rajiv Singh
Rajiv Singh on 11 Aug 2020
You will need an invertible realization. Try high order transfer function estimations with no delays. Or, if the estimated model with delays is a good/accurate model, compute its frequency response (freqresp), invert it, and fit a transfer function to the inverse frequency response.
For literally just removing the delay you can do model.ioDelay= 0

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