Basic of Signals and systems

[timkuc]

What is difference between continuous time signal and a analog signal ??



[I read that every analog signal is a continuous time signal but not every continuous time signal is analog signal . Why ??]

Plz elaborate with example

 

[jeffrey samuel]

the ct signals are those which can be represented as a math eqn eg sine wave

they can be represented as either a single eqn or an expression mathematically

where as analog signals are also continuous signals but they cannot be represented as a math eqn eg human voice

it is continuous but has no fixed relationship that can be represented as a function of time

 

[mondunno]

Analog signals are CT in nature, i.e. the time and value resolution is infinity, for any given time (time can be 1 second or 1.0000000....2343) you have a valid signal level.

Please read:
https://en.wikipedia.org/wiki/Analog_signal
and
https://en.wikipedia.org/wiki/Continuous_signal