IN THIS SECCION I LEARNED WITH READING A ARTICULE OF "SIGNALS" AND I IDENTIFYED WORDS MORE IMPORTANT IN THIS TOPIC.
ANALOG FREQUENCY
is the number of cycles per second of an alternating current (AC) sine wave.
Example: If the analog frequency is 5 Hz, this indicates that its waveform repeats 5 times in 1 second.
en: FRECUENCIA ANALOGICA
Analog signal
Noun
It is a type of signal generated by some type of electromagnetic phenomenon; which is representable by a continuous mathematical function in which its amplitude and period are variable (representing an information data) as a function of time.
Example: Analog signals can be electrical like current, voltage, and power, but they can also be hydraulic like pressure and thermal like temperature.
en: Señal analógica
CONTINUOS -TIME SIGNAILS
NOUN
A continuous signal or signal in continuous-time is a signal that can be expressed as a function whose domain is in the set of real numbers, and it is usually time.
Example: The MAF sensor generates a continuous signal that varies nearly linearly with true mass air flow.
en: SEÑALES DE TIEMPO CONTINUO
Digital signal
Noun
It is a quantized discrete signal that is expressed in Bits (finite number of amplitudes).
Example: The digital signals provide a greater ability to transmit information in a faithful way
en: Señal digital
DISCRETE -TIME SIGNAILS
NOUN
A discrete-time signal a signal that is a function of the discrete-time variable tn, where n takes only integer values.
Example: Discrete time signals can represent, for example, the daily closing value of a stock
en: SEÑALES DE TIEMPO DISCRETO
Encoding
Adjective
It is the process through which human textual information (alphabetic and non-alphabetic characters) is transformed into a smaller set, to be stored or transmitted.
Example: We can name Morse Code as a simple example that will clarify the concept of "encoding".
en: Codificación
SIGNAL ENERGY
Energy signal is a signal whose energy is finite.
Example: Signal energy may be scattered from any of the ionospheric regions, both along the great-circle path and at other orientations.
en: ENERGÍA DE SEÑAL
SIGNALS
NOUN
an electrical impulse or radio wave transmitted or received.
Example: "equipment for receiving TV signals"
en: SEÑALES
SYSTEMS
NOUN
a system is an organized collection of parts (or subsystems) that are highly integrated to
accomplish an overall goal
Example: The advantages which the satellite navigation systems provide are sensational.
en: SISTEMAS
The unit impulse function
noun
The unit impulse function is the dynamic behavior of a system when a Dirac Delta (δ (t)) or impulse is placed at its input.
Example: The unit impulse function δ (t) is not a function in the ordinary sense as a function is defined.
en: La función impulso unitario
The unit step function
Noun
It is a discontinuous function whose value is 0 for any negative argument, and 1 for any positive argument, including zero.
Example: The unit step function has applications in control engineering and signal processing, representing a signal that turns on at a specific time, and stays on indefinitely.
