What do you mean by analog signal?
What do you mean by analog signal? An analog signal is a voltage, current, or physical quantity that continuously and infinitely varies in accordance with some time-varying parameter. For example, radio waves, television waves, or sound waves are all examples of analog signals.
What are the basic signals?
The step, ramp, impulse, exponential, and sinusoidal functions, etc., are the basic signals. These signals may be combined by addition or subtraction to build a variety of general waveforms used in practice. Signals play an important role in life. They are used in communication, speech processing, medical science, etc.