Signal refers to both the process and the result of transmission of data over some media accomplished by embedding some variation. Signals are important in multiple subject fields including signal processing, information … See more

Signals can be categorized in various ways. The most common distinction is between discrete and continuous spaces that the functions are defined over, for example, discrete and continuous-time domains. Discrete-ti… See more

Naturally occurring signals can be converted to electronic signals by various sensors. Examples include:
• Motion. The motion of an object can be considered to be a signal and can be monitored … See more