State space simulink modularize

Hi,

In the attached image, it is visible that I am trying to implement a state space representation in simulink. What I want to achieve is to do it for multiple sets of inputs. My input signal for state space is based on 2 elements. But the input in the shown diagram has 12 elements. I want to make groups of 2 and input them to the gain. Is there an efficient way of doing this without implementing multiple gain blocks?

Answer 1

[Kushagr Gupta]

If I understand the question correctly, you want to modify the input (1x12 vector) into a (2x6 matrix) for the down stream elements to process at one given instant of time. Some of the ways in which this can be done are as follows:

1. Use the ' reshape ' block to reshape the vector input into a matrix. To understand further, go through the documentation provided at the link. Note: As the output of reshape would be a matrix, all the downstream components have to match the size accordingly. For example, if you want scalar multiplication for the group of 2 inputs, then the gain block would become a vector of length 6, so that it can be effectively multiplied.

2. Use a MIMO State Space model to avoid complicating the design using the previous approach, as you will just have to figure out the A,B,C and D matrices once. Documentation for using State Space Block in simulink is available in the embedded link.