How do create a simulink filter if I have the impulse response

I have an impulse response of a system h(t) = exp(-10t)u(t). I am trying to code this in simlink. I am using an interpreted Fcn block that calls this function. I am doing something wrong, as I am getting a frame rate error.

function y = func(u)

h = exp(-10*u);

y = conv(h,u);

Answer 1

[Paul]

Hi Joe,

Why not derive the transfer function H(s) as the Laplace transform of h(t), and then implement H(s) in the Transfer Fcn block. I assume that the that u(t) in the expression h(t) = exp(-10*t)u(t) is the unit step function and not the same as as the u input to func, which is the signal to be filtered.

[Joe Dombroski]

Yes - I actually did try that with a block of 1 / (10 +s). It throws an error because the tranfer Fcn block is a continous signal block an I am using discrete WGN as my input.

[Paul]

Driving an integrator with a discrete signal shouldn't be an error. Can you post the error message and a link to the doc page for the WGN block?