implementing complex multiplication in simulink

how to build the complex mulitplication block with total 4 inputs(2 real,2 imaginary)

Answer 1

[Pratheek Punchathody]

Using the MATLAB Function block, we can create a complex multiplication block with the required number of inputs.

Create a functional block in simulink, by double clicking on this function block write the below function which takes 2 real inputs and 2 imaginary inputs.

function y = fcn(a,b,c,d) %a,c are real inputs and b,d are imaginary inputs
c1=complex(a,b); 
c2=complex(c,d);
y = c1*c2; % performing multiplication
end

The following MATLAB function block is created with 2 real inputs and 2 imaginary inputs. The multiplication operation of the two complex numbers are performed and the output is shown with the variable y.

Hope this helps..!