How to input a stream of matrix elements from Matlab into a simulink model?

Hi, I'm trying to design a hardware-based 3x3 convolution filter.

And I need to figure out how to input the matrix of the image to the simulink model, one element at a time.

What block do I have to use? I've tried several blocks but it leads me to nowhere, the problem usually lie around the file format, or am I missing some block parameters to be set?

Thanks in advance!

[Azzi Abdelmalek]

What do you mean : one element at a time?

Answer 1

[Azzi Abdelmalek]

If you mean by one element at a time:

at t=0, s=A(1,1,1),
at t=ts, s=A(2,1,1)
at t=2*ts, s=A(1,2,1)
and so on

you can use a from workspace block, you have to specify a variable

x=[t s]

with

t=[0:ts:numel(A)*ts-ts]'  % ts is a sample time
s=A(:)

[Bintang Pamungkas]

By "one element at a time" I mean, if the matrix was, for example,

1 2 3

4 5 6

7 8 9

Then the block will output : 1 at t=0, and 2 when t=ts, and so on.

And then I want to multiply the output of the block (the element of matrix) with the output of a constant block (integer).

I'm trying to play around with from workspace block but it still has not given me the output I want it to give.

[Azzi Abdelmalek]

In this case, if your matrix is A, in Matlab Command Windows write:

A=A'
n=numel(A)
vector_time=t=[0:ts:(n-1)*ts]'
s=A(:)
x=[vector_time s]

In simulink model, use a from workspace block with parameters

data=x
sample time=ts

You should also set the final time of simulation parameter to

vector_time(end)

[Bintang Pamungkas]

Yes, this works with a little modification. Thanks!