How can I implement phase delay caused by anti-alias filter in simulink block?

I have an input signal which is delayed by an application of anti-alias filtering. I would like to add or compensate this delay so the signal matches. How do I do this in simulink block?

[Walter Roberson]

Did you resolve your similar question http://uk.mathworks.com/matlabcentral/answers/242763-how-can-i-find-phase-compensation-introduced-during-sampling-in-simulink ?

[Awak Mathok]

i have not answered it...

[Awak Mathok]

Walter, are you able to send me your email so I could send it to you to have a look at what I am talking about?

[Walter Roberson]

I do not have Simulink, so this is beyond my experience.

My understanding is that in Simulink, everything in a continuous time model is considered to happen instantaneously unless there are delay blocks such as Zero Order Hold or Transfer Function. This would model an analog implementations neglecting wire length (which would depend upon layout, a matter far beyond the typical Simulink model.)

If you have a discrete time model, then some of your blocks are going to be connected together with no delay and some are going to be connected together with delay. The total delay is going to depend upon the path taken, but since you know your model layout you should be able to calculate the delay along any given path by adding the delays along the route. The path delay for the filter minus the path delay for no filter, compared to the sample time (1/frequency) should allow you to calculate the phase.

Answer 1

[mohamad hosseini]

1. * if true
2. * % code
3. * end