Which signal has infinite and continuous value?

Analog signals are continuous in time. A continuous-time signal is an infinite and uncountable sequence of numbers, as are the possible values each number can have.



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A signal is considered to be a continuous time signal if it is defined over a continuum of the independent variable. A signal is considered to be discrete time if the independent variable only has discrete values.

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Signals Basic Types
  • Unit step function is denoted by u(t). It is defined as u(t) = {1t?00t<0.
  • Impulse function is denoted by d(t). ...
  • Ramp signal is denoted by r(t), and it is defined as r(t) = {tt?00t<0.
  • Parabolic signal can be defined as x(t) = {t2/2t?00t<0.
  • Signum function is denoted as sgn(t).


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