Unit delay for adaptive filter!

Dear Supporter,

I got a simple question about your adaptive filter (RLS or others).

If I use the nonlinear solver (ode45) to solve this block and “Input” is continuous-time signal, and “Desire” is the discrete-time after the Zero-Order Hold, then what will be the unit delay used in this RLS block!

[Walter Roberson]

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Answer 1

[Sulaymon Eshkabilov]

(1) Simulink has a unit delay block that can be employed to resolve this issue in Simulink environment.

(2) Help documentation of MATLAB on delays (in filter design) addresses here:

https://www.mathworks.com/help/signal/ug/compensate-for-delay-and-distortion-introduced-by-filters.html