Hello, there !!
I am just wondering what "return difference matrix" means in control problem.
Look below..( H(s) : loop transfer function )
\\ The matrix I + H(s) is generally referred to as the return difference matrix. The term comes from the fact that I + H = I - (-H), where -H represents the transfer matrix function around the loop in the presence of a subtraction block.\\
in this paragraph, I could not understand what (-H) means..
WHat on earth does "transfer matrix function around the loop" ?
And How can I understand the meaning of return difference matrix..
Pls, help me understand out that meaning !!
Control Terminology - Return Difference Matrix
