Friday, March 1, 2013
You must have come across causal and non-causal systems at some point in your Engineering life. Most of us might have simply studied that Causal systems are those systems which respond only to present and past inputs whereas Non-Causal systems can also respond to future inputs. That is correct but there is a lot more to explore about it. In this article we shall discuss the fundamental ideas and philosophies involved in this concept. I am not explaining the mathematics of causal systems here as they are readily found in any related text book and also on the Internet. You may refer to your text books any other source if you do not know what it is. Let us explore more on this.