Signal and System

Signals and systems are frequently discussed without knowing the exact parameters being represented. This is the same as using x and y in al...

A signal is a function representing a physical quantity or variable, and typically it contains information about the behavior or nature of t...

A system is a mathematical model of a physical process that relates the input (or excitation) signal to the output (or response) signal. Let...

Convolution is a powerful way of characterizing the input-output relationship of time invarient linear systems. There are two convolution th...

x(t) (or x[n]) is said to be an energy signal (or sequence) if and only if 0 so P = 0. x(t) (or x[n]) is said to be a power signal (or seque...

Real and Complex Signals: A signal x(t) is a real signal if its value is a real number, and a signal x(t) is a complex signal if its value i...

If a continuous-time signal x(t) can take on any value in the continuous interval (a, b), where a may be - infinity and b may be + infinity,...