The amplitude of a periodic variable is a measure of its change in a single period (such as time or spatial period).
Example: A speech signal may be represented as an amplitude function
es: amplitud
Analog frequency
noun
An analog signal is any continuous signal for which the time-varying feature of the signal is a representation of some other time-varying quantity, i.e., analogous to another time-varying signal.
Example: In an electrical signal, the voltage, current, or frequency of the signal may be varied to represent the information.
es: Frecuencia analógica
analog-to-digital converter
noun
The ADC converting an analog signal to a digital one usually performs the operations of sampling-and-hold, quantization, and encoding.
Example: An analog-to-digital converter is any device that converts analog signals
es: Conversor analógico a digital
Continuous-Time Signals
noun
A continuous-time (CT) signal is a function, s(t), that is defined for all time t contained in some interval on the real line.
Example: A continuous-time signal is an infinite and uncountable sequence of numbers
es: Señales de tiempo continuo
digital signal
noun
A discrete-time discrete-amplitude signal is called a digital signal.
Example: The ADC converting an analog signal to a digital one usually performs the operations of sampling-and-hold.
es: señal digital
Discrete-Time Signals
noun
A discrete signal or discrete-time signal is a time series consisting of a sequence of quantities
Example: Unlike a continuous-time signal, a discrete-time signal is not a function of a continuous argument
es: Señales de tiempo discreto
function
noun
a relationship or expression involving one or more variables
Example: A speech signal may be represented as an amplitude function
es: función
Signal energy
noun
The definition of signal energy and power refers to any signal ( )tx , including signals that take on complex values.
Example: The terms signal energy and signal power are used to characterize a signal
es: Energía de señal
signals
noun
Is a function of one or more independent
variables.
Example: A continuous-time continuous-amplitude signal is called an analog signal
es: Señales
systems
noun
a set of things working together as parts of a mechanism or an interconnecting network.
Example: As described in the Foreword, the intuitive notions of signals and systems arise in a rich va-
riety of contexts.
es: sistema
variable
noun
A variable is a symbolic name for (or reference to) information
Example: Depending on whether the independent variables and the values of a signal are continuous or
discrete, the signal can be classified
